Add an orientation parameter for overlay, so we can do camera preview in portrait mode.
diff --git a/libs/surfaceflinger/LayerBase.cpp b/libs/surfaceflinger/LayerBase.cpp
index 8003d22..17db6f4 100644
--- a/libs/surfaceflinger/LayerBase.cpp
+++ b/libs/surfaceflinger/LayerBase.cpp
@@ -809,7 +809,7 @@
 }
 
 sp<OverlayRef> LayerBaseClient::Surface::createOverlay(
-        uint32_t w, uint32_t h, int32_t format) 
+        uint32_t w, uint32_t h, int32_t format, int32_t orientation)
 {
     return NULL;
 };