nb/intel/x4x: Specify supported memory types

Change-Id: I07c24ece29616fa008da0935c3fe71e35f16ed2d
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68998
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/northbridge/intel/x4x/Kconfig b/src/northbridge/intel/x4x/Kconfig
index 5318623..a548df2 100644
--- a/src/northbridge/intel/x4x/Kconfig
+++ b/src/northbridge/intel/x4x/Kconfig
@@ -13,6 +13,11 @@
 	select CACHE_MRC_SETTINGS
 	select BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
 	select HAVE_EXP_X86_64_SUPPORT
+	select NO_DDR5
+	select NO_LPDDR4
+	select NO_DDR4
+	select USE_DDR3
+	select USE_DDR2
 
 config CBFS_SIZE
 	default 0x100000 if !SOUTHBRIDGE_INTEL_I82801GX