msm: mdss: Add support for BGRA and BGRX as writeback output format

Add support to get and set BGRA_8888 and BGRX_8888
as writeback output format using metadata_ioctl.

Change-Id: I093824229d09b89433aaceffe585fb2d3e2b9e10
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>
diff --git a/include/linux/msm_mdp.h b/include/linux/msm_mdp.h
index c3ff9de..35798b2 100644
--- a/include/linux/msm_mdp.h
+++ b/include/linux/msm_mdp.h
@@ -713,6 +713,8 @@
 	WB_FORMAT_RGB_888,
 	WB_FORMAT_xRGB_8888,
 	WB_FORMAT_ARGB_8888,
+	WB_FORMAT_BGRA_8888,
+	WB_FORMAT_BGRX_8888,
 	WB_FORMAT_ARGB_8888_INPUT_ALPHA /* Need to support */
 };