ACPI: Replace uses of CBMEM_ID_ACPI_GNVS

These are the simple cbmem_find() cases. Also drop the redundant
error messages.

Change-Id: I78e5445eb09c322ff94fe4f65345eb2997bd10ef
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
---
M src/mainboard/google/kahlee/mainboard.c
M src/mainboard/google/zork/mainboard.c
M src/soc/amd/picasso/southbridge.c
M src/soc/amd/stoneyridge/southbridge.c
M src/soc/intel/baytrail/lpe.c
M src/soc/intel/baytrail/lpss.c
M src/soc/intel/baytrail/scc.c
M src/soc/intel/braswell/lpe.c
M src/soc/intel/braswell/lpss.c
M src/soc/intel/braswell/scc.c
M src/soc/intel/broadwell/adsp.c
M src/soc/intel/broadwell/serialio.c
M src/soc/intel/common/acpi_wake_source.c
M src/soc/intel/common/block/acpi/acpi.c
M src/soc/intel/common/block/uart/uart.c
M src/soc/intel/common/nhlt.c
M src/southbridge/intel/lynxpoint/acpi.c
M src/southbridge/intel/lynxpoint/serialio.c
18 files changed, 47 insertions(+), 62 deletions(-)