src: Move `select ARCH_X86` to platforms

To generalise the choice of 32-bit or 64-bit coreboot on x86 hardware,
have platforms select `ARCH_X86` directly instead of through per-stage
Kconfig options, effectively reversing the dependency order.

Change-Id: If15436817ba664398055e9efc6c7c656de3bf3e4
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55758
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index 20f09b7..78db12f 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -14,6 +14,7 @@
 	select ARCH_VERSTAGE_X86_32 if !VBOOT_STARTS_BEFORE_BOOTBLOCK
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES if BOOT_DEVICE_SPI_FLASH
 	select DRIVERS_USB_ACPI
 	select DRIVERS_I2C_DESIGNWARE
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index aa0d54a..44728a8 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -13,6 +13,7 @@
 	select ARCH_VERSTAGE_X86_32 if !VBOOT_STARTS_BEFORE_BOOTBLOCK
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
+	select ARCH_X86
 	select RESET_VECTOR_IN_RAM
 	select X86_AMD_FIXED_MTRRS
 	select X86_AMD_INIT_SIPI
diff --git a/src/soc/amd/stoneyridge/Kconfig b/src/soc/amd/stoneyridge/Kconfig
index 7594bd8..0e80f14 100644
--- a/src/soc/amd/stoneyridge/Kconfig
+++ b/src/soc/amd/stoneyridge/Kconfig
@@ -11,6 +11,7 @@
 	def_bool y
 	select ACPI_SOC_NVS
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES if BOOT_DEVICE_SPI_FLASH
 	select COLLECT_TIMESTAMPS_NO_TSC
 	select DRIVERS_I2C_DESIGNWARE
diff --git a/src/soc/example/min86/Kconfig b/src/soc/example/min86/Kconfig
index 38b23c0..66c0e8b 100644
--- a/src/soc/example/min86/Kconfig
+++ b/src/soc/example/min86/Kconfig
@@ -15,6 +15,7 @@
 config SOC_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select NO_MONOTONIC_TIMER
 	select NO_MMCONF_SUPPORT
 	select UNKNOWN_TSC_RATE
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 2e7049f..eafd08d 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -14,6 +14,7 @@
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
 	select CPU_INTEL_COMMON
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig
index 2da0e99..5b743c6 100644
--- a/src/soc/intel/apollolake/Kconfig
+++ b/src/soc/intel/apollolake/Kconfig
@@ -25,6 +25,7 @@
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ACPI_NO_PCAT_8259
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	# CPU specific options
 	select CPU_INTEL_COMMON
diff --git a/src/soc/intel/baytrail/Kconfig b/src/soc/intel/baytrail/Kconfig
index 9af65ee..6c5610d 100644
--- a/src/soc/intel/baytrail/Kconfig
+++ b/src/soc/intel/baytrail/Kconfig
@@ -9,6 +9,7 @@
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
diff --git a/src/soc/intel/braswell/Kconfig b/src/soc/intel/braswell/Kconfig
index 9a55672..7301d63 100644
--- a/src/soc/intel/braswell/Kconfig
+++ b/src/soc/intel/braswell/Kconfig
@@ -9,6 +9,7 @@
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig
index 95e5440..5fc80af 100644
--- a/src/soc/intel/cannonlake/Kconfig
+++ b/src/soc/intel/cannonlake/Kconfig
@@ -48,6 +48,7 @@
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ACPI_NHLT
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
 	select CPU_INTEL_COMMON
diff --git a/src/soc/intel/denverton_ns/Kconfig b/src/soc/intel/denverton_ns/Kconfig
index ee8e9eb..4169ec4 100644
--- a/src/soc/intel/denverton_ns/Kconfig
+++ b/src/soc/intel/denverton_ns/Kconfig
@@ -14,6 +14,7 @@
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select DEBUG_GPIO
 	select SOC_INTEL_COMMON
diff --git a/src/soc/intel/elkhartlake/Kconfig b/src/soc/intel/elkhartlake/Kconfig
index 29ce195..139161b 100644
--- a/src/soc/intel/elkhartlake/Kconfig
+++ b/src/soc/intel/elkhartlake/Kconfig
@@ -9,6 +9,7 @@
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
 	select CPU_INTEL_COMMON
diff --git a/src/soc/intel/icelake/Kconfig b/src/soc/intel/icelake/Kconfig
index 71e2bee..e5ab889 100644
--- a/src/soc/intel/icelake/Kconfig
+++ b/src/soc/intel/icelake/Kconfig
@@ -9,6 +9,7 @@
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
 	select SET_IA32_FC_LOCK_BIT
diff --git a/src/soc/intel/jasperlake/Kconfig b/src/soc/intel/jasperlake/Kconfig
index a30656e..b2c2dc4 100644
--- a/src/soc/intel/jasperlake/Kconfig
+++ b/src/soc/intel/jasperlake/Kconfig
@@ -9,6 +9,7 @@
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
 	select CPU_INTEL_COMMON
diff --git a/src/soc/intel/quark/Kconfig b/src/soc/intel/quark/Kconfig
index 0b57b7e..ffb08c6 100644
--- a/src/soc/intel/quark/Kconfig
+++ b/src/soc/intel/quark/Kconfig
@@ -10,6 +10,7 @@
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select NO_MMCONF_SUPPORT
 	select REG_SCRIPT
 	select PLATFORM_USES_FSP2_0
diff --git a/src/soc/intel/skylake/Kconfig b/src/soc/intel/skylake/Kconfig
index 0117b0b..d16a7c9 100644
--- a/src/soc/intel/skylake/Kconfig
+++ b/src/soc/intel/skylake/Kconfig
@@ -24,6 +24,7 @@
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ACPI_NHLT
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
 	select CPU_INTEL_COMMON
diff --git a/src/soc/intel/tigerlake/Kconfig b/src/soc/intel/tigerlake/Kconfig
index 568bb6e..26da244 100644
--- a/src/soc/intel/tigerlake/Kconfig
+++ b/src/soc/intel/tigerlake/Kconfig
@@ -9,6 +9,7 @@
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CACHE_MRC_SETTINGS
 	select CPU_INTEL_COMMON
diff --git a/src/soc/intel/xeon_sp/Kconfig b/src/soc/intel/xeon_sp/Kconfig
index 5e0f756..1a63e59 100644
--- a/src/soc/intel/xeon_sp/Kconfig
+++ b/src/soc/intel/xeon_sp/Kconfig
@@ -27,6 +27,7 @@
 config	CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES
 	select CPU_INTEL_COMMON
 	select SOC_INTEL_COMMON