src/device/dram/ddr3: Parse additional information

Parse manufacturer id and ASCII serial.
Required for SMBIOS type 17 field.

Change-Id: I710de1a6822e4777c359d0bfecc6113cb2a5ed8e
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/13862
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

src/include/device/dram/ddr3.h

@@ -167,6 +167,10 @@ typedef struct dimm_attr_st {
 	u16 voltage;
 	/* XMP: max DIMMs per channel supported (1-4) */
 	u8 dimms_per_channel;
+	/* Manufacturer ID */
+	u16 manufacturer_id;
+	/* ASCII part number - NULL terminated */
+	u8 part_number[17];
 } dimm_attr;
 
 /** Result of the SPD decoding process */