reset the gl viewport at each frame for each display

Bug: 10097128, 9506003
Change-Id: Ie0403a631e339a9134216224f3366f46ece58b53
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 9708ee3..61a9361 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -271,9 +271,9 @@
         if (result == EGL_TRUE) {
             if (mType >= DisplayDevice::DISPLAY_VIRTUAL)
                 eglSwapInterval(dpy, 0);
-            setViewportAndProjection();
         }
     }
+    setViewportAndProjection();
     return result;
 }