nb/intel/gm45: Specify supported memory types

Change-Id: I3a3a45a1a36ea6ad0b8fb2d3ee78add0b38460ac
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68997
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/northbridge/intel/gm45/Kconfig

@@ -13,6 +13,11 @@ config NORTHBRIDGE_SPECIFIC_OPTIONS
 	select INTEL_GMA_ACPI
 	select INTEL_GMA_SSC_ALTERNATE_REF
 	select HAVE_EXP_X86_64_SUPPORT
+	select NO_DDR5
+	select NO_LPDDR4
+	select NO_DDR4
+	select USE_DDR3
+	select USE_DDR2
 
 config VBOOT
 	select VBOOT_STARTS_IN_BOOTBLOCK