soc/amd/picasso: move APOB NV cache to common code

Also rename mrc_cache to apob_cache.

BUG=b:181766974

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I4877b05443452c7409006c1656e9d574e93150a0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51267
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/soc/amd/picasso/Kconfig

@@ -28,6 +28,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_AMD_COMMON_BLOCK_ACPI
 	select SOC_AMD_COMMON_BLOCK_ACPIMMIO
 	select SOC_AMD_COMMON_BLOCK_AOAC
+	select SOC_AMD_COMMON_BLOCK_APOB
 	select SOC_AMD_COMMON_BLOCK_BANKED_GPIOS
 	select SOC_AMD_COMMON_BLOCK_DATA_FABRIC
 	select SOC_AMD_COMMON_BLOCK_GRAPHICS