Improve SF dumpsys output wrt HWC

Change-Id: Ibdb7930fa3b521bfd3f44750ed98cfd75f9a01fe
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 2576576..768f8e0 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1606,7 +1606,7 @@
                 hwc.initCheck()==NO_ERROR ? "present" : "not present",
                 (mDebugDisableHWC || mDebugRegion) ? "disabled" : "enabled");
         result.append(buffer);
-        hwc.dump(result, buffer, SIZE);
+        hwc.dump(result, buffer, SIZE, mVisibleLayersSortedByZ);
 
         /*
          * Dump gralloc state