Merge ICS HEAD

libhwcomposer/hwcomposer.cpp

@@ -960,6 +960,8 @@ static void handleHDMIStateChange(hwc_composer_device_t *dev, int externaltype)
         if (fbDev) {
             fbDev->perform(fbDev, EVENT_EXTERNAL_DISPLAY, externaltype);
         }
+        // Yield - Allows the UI channel(with zorder 0) to be opened first
+        sched_yield();
         if(ctx && ctx->mOverlayLibObject) {
             overlay::Overlay *ovLibObject = ctx->mOverlayLibObject;
             if (!externaltype) {