soc/amd/common: Rework block/acpi

The halt.c file relies on the ACPI register block in the AcpiMmio
range.  This register block is consistent across AMD device
generations, so to prepare for moving additional stoneyridge support
to this directory by changing the file name and add a Kconfig symbol
to control the build.

BUG=b:131682806

Change-Id: I2f7442dd78bced7f69b0416a8cd751291f82151f
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32654
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/amd/common/block/acpi/Kconfig

@@ -0,0 +1,6 @@
+config SOC_AMD_COMMON_BLOCK_ACPI
+	bool
+	depends on SOC_AMD_COMMON_BLOCK_ACPIMMIO
+	default n
+	help
+	  Select this option to use the AcpiMmio ACPI registers.

src/soc/amd/common/block/acpi/Makefile.inc

@@ -1,2 +1,2 @@
-ramstage-y += halt.c
-smm-y += halt.c
+ramstage-$(CONFIG_SOC_AMD_COMMON_BLOCK_ACPI) += acpi.c
+smm-$(CONFIG_SOC_AMD_COMMON_BLOCK_ACPI) += acpi.c

src/soc/amd/stoneyridge/Kconfig

@@ -48,6 +48,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_AMD_COMMON_BLOCK
 	select SOC_AMD_COMMON_BLOCK_ACPIMMIO
 	select SOC_AMD_COMMON_BLOCK_BANKED_GPIOS
+	select SOC_AMD_COMMON_BLOCK_ACPI
 	select SOC_AMD_COMMON_BLOCK_LPC
 	select SOC_AMD_COMMON_BLOCK_PCI
 	select SOC_AMD_COMMON_BLOCK_PI