lib: increase part number size in memory_info/dimm_info

The dimm_info and memory_info structs are used in devices that
don't strictly use DIMMs. Those platforms have the DRAM soldered
down so there's no DIMM part number that encapsulates the DRAMs
used in the DIMM. The full part number is desired to be exposed in
the SMBIOS tables. As such extend DIMM_INFO_PART_NUMBER_SIZE to 33
to accommodate longer part numbers

'MT53B256M32D1NP-053 WT:C' is one of the longer part numbers that
are desired to be maintained.

BUG=b:115697578

Change-Id: I0c39dd1d1c2f0776d70d8c4d8d56719779ff82ae
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/28978
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/include/memory_info.h b/src/include/memory_info.h
index 1b30702..5976e31 100644
--- a/src/include/memory_info.h
+++ b/src/include/memory_info.h
@@ -19,7 +19,7 @@
 #include <stdint.h>
 
 #define DIMM_INFO_SERIAL_SIZE		4
-#define DIMM_INFO_PART_NUMBER_SIZE	21
+#define DIMM_INFO_PART_NUMBER_SIZE	33
 #define DIMM_INFO_TOTAL			8	/* Maximum num of dimm is 8 */
 
 /**