SPD: Add DRAM devices types

Add SDRAM or module types to byte 2.

Change-Id: Id6e654a3a714c164bc9a7fbd9ab3e2f3c44ca5ea
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15265
Tested-by: build bot (Jenkins)
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/include/spd.h b/src/include/spd.h
index 69a45ff..6424d33 100644
--- a/src/include/spd.h
+++ b/src/include/spd.h
@@ -118,6 +118,10 @@
 	SPD_MEMORY_TYPE_FBDIMM_DDR2		= 0x09,
 	SPD_MEMORY_TYPE_FB_PROBE_DDR2		= 0x0a,
 	SPD_MEMORY_TYPE_SDRAM_DDR3		= 0x0b,
+	SPD_MEMORY_TYPE_DDR4_SDRAM		= 0x0c,
+	SPD_MEMORY_TYPE_DDR4E_SDRAM		= 0x0e,
+	SPD_MEMORY_TYPE_LPDDR3_SDRAM		= 0x0f,
+	SPD_MEMORY_TYPE_LPDDR4_SDRAM		= 0x10,
 };
 
 /* SPD_MODULE_VOLTAGE values. */