i965/i915: Add UYVY as the supported format

Trigger the correct sampler options for it. Similar with YUYV

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index a93f4c5..71118c1 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -270,6 +270,10 @@
    found |= key_debug(brw, "yx_xuxv image bound",
                       old_key->yx_xuxv_image_mask,
                       key->yx_xuxv_image_mask);
+   found |= key_debug(brw, "xy_uxvx image bound",
+                      old_key->xy_uxvx_image_mask,
+                      key->xy_uxvx_image_mask);
+
 
    for (unsigned int i = 0; i < MAX_SAMPLERS; i++) {
       found |= key_debug(brw, "textureGather workarounds",
@@ -412,6 +416,9 @@
             case __DRI_IMAGE_COMPONENTS_Y_XUXV:
                key->yx_xuxv_image_mask |= 1 << s;
                break;
+            case __DRI_IMAGE_COMPONENTS_Y_UXVX:
+               key->xy_uxvx_image_mask |= 1 << s;
+               break;
             default:
                break;
             }