soc/intel/{apl,skl}: Drop redundant `select RTC`

RTC is now implicitly selected through SOC_INTEL_COMMON_BLOCK_RTC
and SOC_INTEL_COMMON_PCH_BASE.

Change-Id: I1885c419cfe318b75f3bda6220d4a6f6a8e26575
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/31113
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>

src/soc/intel/apollolake/Kconfig

@@ -62,7 +62,6 @@ config CPU_SPECIFIC_OPTIONS
 	select PMC_INVALID_READ_AFTER_WRITE
 	select PMC_GLOBAL_RESET_ENABLE_LOCK
 	select REG_SCRIPT
-	select RTC
 	select SMM_TSEG
 	select SA_ENABLE_IMR
 	select SOC_INTEL_COMMON

src/soc/intel/skylake/Kconfig

@@ -42,7 +42,6 @@ config CPU_SPECIFIC_OPTIONS
 	select PARALLEL_MP_AP_WORK
 	select PCIEX_LENGTH_64MB
 	select REG_SCRIPT
-	select RTC
 	select SA_ENABLE_DPR
 	select SMM_TSEG
 	select SMP