libpayload: Add VPD address into lib_sysinfo

BUG=chrome-os-partner:56947
TEST=Verifed country code can be parsed from VPD in depthcharge.
BRANCH=None

Change-Id: I2fbbd4a784c50538331747e1ef78c33c6b8a679b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: acea6e2a200e8bd78fd458255ac7fad307406989
Original-Change-Id: I4616fefc6a377d7830397cdadb493927358e25cc
Original-Signed-off-by: Kan Yan <kyan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/425819
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/18124
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>

payloads/libpayload/include/coreboot_tables.h

@@ -206,6 +206,7 @@ struct cb_gpios {
 #define CB_TAG_DMA		0x0022
 #define CB_TAG_RAM_OOPS		0x0023
 #define CB_TAG_MTC		0x002b
+#define CB_TAG_VPD		0x002c
 struct lb_range {
 	uint32_t tag;
 	uint32_t size;