soc/intel: Fix dependency of CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM

This depends on RELOCATABLE_RAMSTAGE, and shouldn't be selected if
its dependency is not activated.

Change-Id: I8e7efc3f87e105715fe3377ed306891f0d209979
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/11473
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)

src/soc/intel/skylake/Kconfig

@@ -13,7 +13,7 @@ config CPU_SPECIFIC_OPTIONS
 	select ARCH_VERSTAGE_X86_32
 	select BACKUP_DEFAULT_SMM_REGION
 	select CACHE_MRC_SETTINGS
-	select CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM
+	select CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM if RELOCATABLE_RAMSTAGE
 	select CACHE_ROM
 	select CAR_MIGRATION
 	select COLLECT_TIMESTAMPS