soc/intel/xeon_sp/spr: Select DISABLE_ACPI_HIBERNATE to remove S4 state

Server platform doesn't have S4 state so select DISABLE_ACPI_HIBERNATE
to remove S4 state from available sleepstates.

Signed-off-by: Tim Chu <Tim.Chu@quantatw.com>
Change-Id: Ie5ddb1a98cd5bbd854b915c93694d1ebcb9bddd2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73248
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jon.zhixiong.zhang@gmail.com>

src/soc/intel/xeon_sp/spr/Kconfig

@@ -7,6 +7,7 @@ config SOC_SPECIFIC_OPTIONS
 	select MICROCODE_BLOB_NOT_HOOKED_UP
 	select SAVE_MRC_AFTER_FSPS
 	select SOC_INTEL_MEM_MAPPED_PM_CONFIGURATION
+	select DISABLE_ACPI_HIBERNATE
 
 config CHIPSET_DEVICETREE
 	string