display: Add support for interleaved YUY2 and YUYV format.

Adding support for interleaved HAL_PIXEL_FORMAT_YCbCr_422_I and
HAL_PIXEL_FORMAT_YCrCb_422_I format in display HAL.

Change-Id: Ib87d9bf481c20bf6a92293dd04746719b1d928c1
diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h
index 3187648..b3fddf1 100644
--- a/libgralloc/gralloc_priv.h
+++ b/libgralloc/gralloc_priv.h
@@ -100,6 +100,7 @@
     HAL_PIXEL_FORMAT_RG_88                  = 0x10E,
     HAL_PIXEL_FORMAT_YCbCr_444_SP           = 0x10F,
     HAL_PIXEL_FORMAT_YCrCb_444_SP           = 0x110,
+    HAL_PIXEL_FORMAT_YCrCb_422_I            = 0x111,
     HAL_PIXEL_FORMAT_INTERLACE              = 0x180,
 
 };