soc/intel/alderlake: Align board type as per FSP v2347_00

This patch adds new board type BOARD_TYPE_ULT_ULX_T4 and changes
BOARD_TYPE_SERVER value to 8.

BUG=b:199359579
BRANCH=None
TEST=Build and boot brya

Change-Id: I48eb0785a209499ee0d90bd541376d9bbacf2390
Signed-off-by: Ronak Kanabar <ronak.kanabar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57524
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>

src/soc/intel/alderlake/include/soc/romstage.h

@@ -14,7 +14,8 @@ enum board_type {
 	BOARD_TYPE_MOBILE  = 0,
 	BOARD_TYPE_DESKTOP = 1,
 	BOARD_TYPE_ULT_ULX = 5,
-	BOARD_TYPE_SERVER  = 7
+	BOARD_TYPE_ULT_ULX_T4 = 6,
+	BOARD_TYPE_SERVER  = 8
 };
 
 #endif /* _SOC_ROMSTAGE_H_ */