display_extn_intf: Add new layer flag

Add new layer flag to store blur request status.

CRs-Fixed: 3173915

Change-Id: Id9d40cc172a6a23652c707d7d9dd8fd02c385b98
diff --git a/include/display_extn_intf.h b/include/display_extn_intf.h
index ed96f64..9230917 100644
--- a/include/display_extn_intf.h
+++ b/include/display_extn_intf.h
@@ -86,6 +86,7 @@
   bool secure_video = false;
   bool secure_ui = false;
   bool compatible = false;
+  bool blur = false;
 };
 
 struct FBTLayerInfo {