drm/i915/cfl: Add Coffee Lake PCI IDs for U Sku.

Add PCI Ids for U Skus of Coffeelake.

v2: Use intel_coffeelake_gt3_info, in accordance to-
Rodrigo's patch:

v3: rebased

v3: Remove unused INTEL_CFL_IDS(Rodrigo).

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1496965267-21725-3-git-send-email-anusha.srivatsa@intel.com

drivers/gpu/drm/i915/i915_pci.c

@@ -491,6 +491,7 @@ static const struct pci_device_id pciidlist[] = {
 	INTEL_KBL_GT4_IDS(&intel_kabylake_gt3_info),
 	INTEL_CFL_S_IDS(&intel_coffeelake_info),
 	INTEL_CFL_H_IDS(&intel_coffeelake_info),
+	INTEL_CFL_U_IDS(&intel_coffeelake_gt3_info),
 	INTEL_CNL_IDS(&intel_cannonlake_info),
 	{0, 0, 0}
 };

include/drm/i915_pciids.h

@@ -347,6 +347,13 @@
 	INTEL_VGA_DEVICE(0x3E9B, info), /* Halo GT2 */ \
 	INTEL_VGA_DEVICE(0x3E94, info)  /* Halo GT2 */
 
+/* CFL U */
+#define INTEL_CFL_U_IDS(info) \
+	INTEL_VGA_DEVICE(0x3EA6, info), /* ULT GT3 */ \
+	INTEL_VGA_DEVICE(0x3EA7, info), /* ULT GT3 */ \
+	INTEL_VGA_DEVICE(0x3EA8, info), /* ULT GT3 */ \
+	INTEL_VGA_DEVICE(0x3EA5, info)  /* ULT GT3 */
+
 /* CNL U 2+2 */
 #define INTEL_CNL_U_GT2_IDS(info) \
 	INTEL_VGA_DEVICE(0x5A52, info), \