hwc: enable dual display on hwc 1.1

Enable dual display on HWC 1.1; video uses overlay.

Bug: 7124159
Change-Id: I8333e46cfc74072f6259fba2b82368f0dd52b6df
Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/liboverlay/overlayUtils.h b/liboverlay/overlayUtils.h
index f308b95..8db37c5 100644
--- a/liboverlay/overlayUtils.h
+++ b/liboverlay/overlayUtils.h
@@ -402,6 +402,8 @@
     /* UI Mirroring */
     OV_UI_MIRROR,
     OV_2D_TRUE_UI_MIRROR,
+    /* Dual display with video */
+    OV_UI_VIDEO_TV,
 
     /* Composition Bypass */
     OV_BYPASS_1_LAYER,
@@ -648,6 +650,8 @@
             return "OV_UI_MIRROR";
         case OV_2D_TRUE_UI_MIRROR:
             return "OV_2D_TRUE_UI_MIRROR";
+        case OV_UI_VIDEO_TV:
+            return "OV_UI_VIDEO_TV";
         case OV_BYPASS_1_LAYER:
             return "OV_BYPASS_1_LAYER";
         case OV_BYPASS_2_LAYER: