nb/intel/nehalem: use pmclib to detect S3 resume

During the raminit the CPU gets reset, so reprogram those bits in
PM1_CNT such that the CPU remains aware that this is a S3 resume path
after the reset.

Change-Id: I8f5cafa235c8ab0d0a59fbeeee3465ebca4cc5d0
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36038
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/southbridge/intel/ibexpeak/Kconfig

@@ -33,6 +33,7 @@ config SOUTH_BRIDGE_OPTIONS # dummy
 	select SOUTHBRIDGE_INTEL_COMMON_SMBUS
 	select SOUTHBRIDGE_INTEL_COMMON_SPI
 	select SOUTHBRIDGE_INTEL_COMMON_SMM
+	select SOUTHBRIDGE_INTEL_COMMON_PMCLIB
 	select HAVE_USBDEBUG_OPTIONS
 	select COMMON_FADT
 	select ACPI_SATA_GENERATOR