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

src/drivers/amd/agesa/Makefile.inc

@@ -20,7 +20,6 @@ ramstage-y += def_callouts.c
 ramstage-y += eventlog.c
 ramstage-y += heapmanager.c
 ramstage-y += acpi_tables.c
-ramstage-y += nvs.c
 
 romstage-$(CONFIG_CPU_AMD_AGESA) += oem_s3.c
 ramstage-$(CONFIG_CPU_AMD_AGESA) += oem_s3.c s3_mtrr.c

src/drivers/amd/agesa/nvs.c

@@ -1,9 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-#include <acpi/acpi_gnvs.h>
-#include <stdint.h>
-
-size_t gnvs_size_of_array(void)
-{
-	return 0;
-}