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/cpu/amd/agesa/Kconfig b/src/cpu/amd/agesa/Kconfig
index 51b61a1..f71b8ed 100644
--- a/src/cpu/amd/agesa/Kconfig
+++ b/src/cpu/amd/agesa/Kconfig
@@ -7,6 +7,7 @@
 	default y if CPU_AMD_AGESA_FAMILY16_KB
 	default n
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select DRIVERS_AMD_PI
 	select TSC_SYNC_LFENCE
 	select UDELAY_LAPIC
diff --git a/src/cpu/amd/pi/Kconfig b/src/cpu/amd/pi/Kconfig
index 05d1065..4cc6902 100644
--- a/src/cpu/amd/pi/Kconfig
+++ b/src/cpu/amd/pi/Kconfig
@@ -5,6 +5,7 @@
 	default y if CPU_AMD_PI_00730F01
 	default n
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select DRIVERS_AMD_PI
 	select TSC_SYNC_LFENCE
 	select UDELAY_LAPIC
diff --git a/src/cpu/intel/haswell/Kconfig b/src/cpu/intel/haswell/Kconfig
index 814d15e..1c91941 100644
--- a/src/cpu/intel/haswell/Kconfig
+++ b/src/cpu/intel/haswell/Kconfig
@@ -7,6 +7,7 @@
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
 	select MMX
 	select SSE2
diff --git a/src/cpu/intel/model_1067x/Kconfig b/src/cpu/intel/model_1067x/Kconfig
index 777eff6..6ddb99e 100644
--- a/src/cpu/intel/model_1067x/Kconfig
+++ b/src/cpu/intel/model_1067x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_1067X
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SSE2
 	select UDELAY_TSC
 	select TSC_MONOTONIC_TIMER
diff --git a/src/cpu/intel/model_106cx/Kconfig b/src/cpu/intel/model_106cx/Kconfig
index bf9256a..9f59b47 100644
--- a/src/cpu/intel/model_106cx/Kconfig
+++ b/src/cpu/intel/model_106cx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_106CX
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SSE2
 	select UDELAY_TSC
 	select TSC_MONOTONIC_TIMER
diff --git a/src/cpu/intel/model_2065x/Kconfig b/src/cpu/intel/model_2065x/Kconfig
index e4714f5..f539247 100644
--- a/src/cpu/intel/model_2065x/Kconfig
+++ b/src/cpu/intel/model_2065x/Kconfig
@@ -6,6 +6,7 @@
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
 	select SSE2
 	select UDELAY_TSC
diff --git a/src/cpu/intel/model_206ax/Kconfig b/src/cpu/intel/model_206ax/Kconfig
index 109b6b5..9a0d792 100644
--- a/src/cpu/intel/model_206ax/Kconfig
+++ b/src/cpu/intel/model_206ax/Kconfig
@@ -12,6 +12,7 @@
 	def_bool y
 	select ARCH_ALL_STAGES_X86_32 if !ARCH_EXP_X86_64
 	select ARCH_ALL_STAGES_X86_64 if ARCH_EXP_X86_64
+	select ARCH_X86
 	select BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
 	select MMX
 	select SSE2
diff --git a/src/cpu/intel/model_65x/Kconfig b/src/cpu/intel/model_65x/Kconfig
index 2eaa55e..f9d1236 100644
--- a/src/cpu/intel/model_65x/Kconfig
+++ b/src/cpu/intel/model_65x/Kconfig
@@ -1,4 +1,5 @@
 config CPU_INTEL_MODEL_65X
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
diff --git a/src/cpu/intel/model_67x/Kconfig b/src/cpu/intel/model_67x/Kconfig
index 7fdb67f..2fce135 100644
--- a/src/cpu/intel/model_67x/Kconfig
+++ b/src/cpu/intel/model_67x/Kconfig
@@ -1,4 +1,5 @@
 config CPU_INTEL_MODEL_67X
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
diff --git a/src/cpu/intel/model_68x/Kconfig b/src/cpu/intel/model_68x/Kconfig
index 1b57dfc..67d4b77 100644
--- a/src/cpu/intel/model_68x/Kconfig
+++ b/src/cpu/intel/model_68x/Kconfig
@@ -3,4 +3,5 @@
 config CPU_INTEL_MODEL_68X
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
diff --git a/src/cpu/intel/model_6bx/Kconfig b/src/cpu/intel/model_6bx/Kconfig
index a87228c..418f9bd 100644
--- a/src/cpu/intel/model_6bx/Kconfig
+++ b/src/cpu/intel/model_6bx/Kconfig
@@ -1,4 +1,5 @@
 config CPU_INTEL_MODEL_6BX
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
diff --git a/src/cpu/intel/model_6ex/Kconfig b/src/cpu/intel/model_6ex/Kconfig
index 31897ad..240cee6 100644
--- a/src/cpu/intel/model_6ex/Kconfig
+++ b/src/cpu/intel/model_6ex/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_6EX
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SSE2
 	select UDELAY_TSC
 	select TSC_MONOTONIC_TIMER
diff --git a/src/cpu/intel/model_6fx/Kconfig b/src/cpu/intel/model_6fx/Kconfig
index 1911ebc..048178a 100644
--- a/src/cpu/intel/model_6fx/Kconfig
+++ b/src/cpu/intel/model_6fx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_6FX
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SSE2
 	select UDELAY_TSC
 	select TSC_MONOTONIC_TIMER
diff --git a/src/cpu/intel/model_6xx/Kconfig b/src/cpu/intel/model_6xx/Kconfig
index 18844d1..eb2268a 100644
--- a/src/cpu/intel/model_6xx/Kconfig
+++ b/src/cpu/intel/model_6xx/Kconfig
@@ -1,4 +1,5 @@
 config CPU_INTEL_MODEL_6XX
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
diff --git a/src/cpu/intel/model_f2x/Kconfig b/src/cpu/intel/model_f2x/Kconfig
index afa9371..e1708ba 100644
--- a/src/cpu/intel/model_f2x/Kconfig
+++ b/src/cpu/intel/model_f2x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_F2X
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
 	select SMM_ASEG
 	select CPU_INTEL_COMMON
diff --git a/src/cpu/intel/model_f3x/Kconfig b/src/cpu/intel/model_f3x/Kconfig
index 61923b8..151a8e7 100644
--- a/src/cpu/intel/model_f3x/Kconfig
+++ b/src/cpu/intel/model_f3x/Kconfig
@@ -1,5 +1,6 @@
 config CPU_INTEL_MODEL_F3X
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
 	select CPU_INTEL_COMMON
diff --git a/src/cpu/intel/model_f4x/Kconfig b/src/cpu/intel/model_f4x/Kconfig
index d146dd4..2d31655 100644
--- a/src/cpu/intel/model_f4x/Kconfig
+++ b/src/cpu/intel/model_f4x/Kconfig
@@ -1,4 +1,5 @@
 config CPU_INTEL_MODEL_F4X
 	bool
 	select ARCH_ALL_STAGES_X86_32
+	select ARCH_X86
 	select SUPPORT_CPU_UCODE_IN_CBFS
diff --git a/src/cpu/qemu-x86/Kconfig b/src/cpu/qemu-x86/Kconfig
index 674e05c..440d8cb 100644
--- a/src/cpu/qemu-x86/Kconfig
+++ b/src/cpu/qemu-x86/Kconfig
@@ -2,6 +2,7 @@
 
 config CPU_QEMU_X86
 	bool
+	select ARCH_X86
 	select UDELAY_TSC
 	select TSC_MONOTONIC_TIMER
 	select UNKNOWN_TSC_RATE