vendorcode/siemens: Add HWID to hwilib

Add the location of HWID field so that hwilib supports this
value as well.

Change-Id: If6d4695f861232231ac8f9c247c0a10410dac1c5
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/17575
Tested-by: build bot (Jenkins)
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
diff --git a/src/vendorcode/siemens/hwilib/hwilib.c b/src/vendorcode/siemens/hwilib/hwilib.c
index b6cdd90..18880ff 100644
--- a/src/vendorcode/siemens/hwilib/hwilib.c
+++ b/src/vendorcode/siemens/hwilib/hwilib.c
@@ -107,6 +107,10 @@
 	[SIB_HwRev] = {
 		.pos[0] = {.blk_type = BLK_SIB, .offset = 0xc8, .len = 2},
 		.get_field = hwilib_read_bytes },
+	[HWID] = {
+		.pos[0] = {.blk_type = BLK_HIB, .offset = 0x1a8, .len = 4},
+		.pos[1] = {.blk_type = BLK_SIB, .offset = 0xd0, .len = 4},
+		.get_field = hwilib_read_bytes },
 	[UniqueNum] = {
 		.pos[0] = {.blk_type = BLK_HIB, .offset = 0xa2, .len = 10},
 		.pos[1] = {.blk_type = BLK_SIB, .offset = 0xa2, .len = 10},
diff --git a/src/vendorcode/siemens/hwilib/hwilib.h b/src/vendorcode/siemens/hwilib/hwilib.h
index fc083de..001c958 100644
--- a/src/vendorcode/siemens/hwilib/hwilib.h
+++ b/src/vendorcode/siemens/hwilib/hwilib.h
@@ -26,6 +26,7 @@
 	XIB_VerID,
 	HIB_HwRev,
 	SIB_HwRev,
+	HWID,
 	UniqueNum,
 	Mac1,
 	Mac2,