soc/intel: Fill DIMM serial number from SPD

Fill the DIMM serial number field for SMBIOS from the saved SPD
data that is returned by FSP.

BUG=b:132970635
TEST=This was tested on sarien to ensure that SMBIOS type 17
filled the serial number from the DIMM:

Handle 0x000B, DMI type 17, 40 bytes
Memory Device
        Locator: DIMM-A
        Serial Number: 41164beb

Change-Id: I85438bd1d581095ea3482dcf077a7f3389f1cd47
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32853
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>

src/soc/intel/common/smbios.h

@@ -19,10 +19,13 @@
 #include <stdint.h>
 #include <memory_info.h>
 
+/* Offset info DIMM_INFO SpdSave for start of serial number */
+#define SPD_SAVE_OFFSET_SERIAL	5
+
 /* Fill the SMBIOS memory information from FSP MEM_INFO_DATA_HOB in CBMEM.*/
 void dimm_info_fill(struct dimm_info *dimm, u32 dimm_capacity, u8 ddr_type,
 		u32 frequency, u8 rank_per_dimm, u8 channel_id, u8 dimm_id,
 		const char *module_part_num, size_t module_part_number_size,
-		u16 data_width);
+		const u8 *module_serial_num, u16 data_width);
 
 #endif /* _COMMON_SMBIOS_H_ */