soc/intel/common/graphics: Add another Meteor Lake device ID

Add 0x7d55 as another ID for Meteor Lake graphics controllers.

TEST=Boot with MTL silicon to check coreboot log for DID2
Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: Iea01f6d4f2469fc0eeac73a3f1c4b9af1f39463c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Jamie Ryu <jamie.m.ryu@intel.com>
diff --git a/src/soc/intel/common/block/graphics/graphics.c b/src/soc/intel/common/block/graphics/graphics.c
index 3c27777..d13b322 100644
--- a/src/soc/intel/common/block/graphics/graphics.c
+++ b/src/soc/intel/common/block/graphics/graphics.c
@@ -186,6 +186,7 @@
 	PCI_DID_INTEL_MTL_M_GT2,
 	PCI_DID_INTEL_MTL_P_GT2_1,
 	PCI_DID_INTEL_MTL_P_GT2_2,
+	PCI_DID_INTEL_MTL_P_GT2_3,
 	PCI_DID_INTEL_APL_IGD_HD_505,
 	PCI_DID_INTEL_APL_IGD_HD_500,
 	PCI_DID_INTEL_CNL_GT2_ULX_1,