drm_hwcomposer: implement squashing

Change-Id: Ifd4feaa0de303ddfd519d4415ab31d2a72f26022
diff --git a/drmcomposition.cpp b/drmcomposition.cpp
index 09bdba7..e7b02b6 100644
--- a/drmcomposition.cpp
+++ b/drmcomposition.cpp
@@ -80,8 +80,8 @@
       continue;
     }
 
-    ret = composition_map_[display]->SetLayers(map.layers.data(),
-                                               map.layers.size());
+    ret = composition_map_[display]->SetLayers(
+        map.layers.data(), map.layers.size(), map.geometry_changed);
     if (ret)
       return ret;
   }