CBMEM: always initialize early if the board supports it

This allows to drop some special cases in romstage.c

Change-Id: I53fdfcd1bb6ec21a5280afa07a40e3f0cba11c5d
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2551
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/intel/emeraldlake2/Kconfig

@@ -15,6 +15,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select GFXUMA
 	#select CHROMEOS
 	select EXTERNAL_MRC_BLOB
+	select EARLY_CBMEM_INIT
 
 config MAINBOARD_DIR
 	string