ACPI: Select ACPI_SOC_NVS only where suitable

Having some symmetry with <soc/nvs.h> now allows to reduce
the amount of gluelogic to determine the size and cbmc field
of struct global_nvs.

Since GNVS creation is now controlled by ACPI_SOC_NVS,
drivers/amd/agesa/nvs.c becomes obsolete and soc/amd/cezanne
cannot have this selected until <soc/nvs.h> exists.

Change-Id: Ia9ec853ff7f5e7908f7e8fc179ac27d0da08e19d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49344
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Lance Zhao
diff --git a/src/southbridge/intel/ibexpeak/Kconfig b/src/southbridge/intel/ibexpeak/Kconfig
index c54c7e4..cea0efe 100644
--- a/src/southbridge/intel/ibexpeak/Kconfig
+++ b/src/southbridge/intel/ibexpeak/Kconfig
@@ -8,6 +8,7 @@
 config SOUTH_BRIDGE_OPTIONS # dummy
 	def_bool y
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
+	select ACPI_SOC_NVS
 	select AZALIA_PLUGIN_SUPPORT
 	select IOAPIC
 	select HAVE_SMI_HANDLER