Support for cubemaps.

Change-Id: Iaf6087f614451a8e233b3e5bc49c834ab0ad08ee
diff --git a/libs/rs/rsProgram.h b/libs/rs/rsProgram.h
index b682b97..c48464d 100644
--- a/libs/rs/rsProgram.h
+++ b/libs/rs/rsProgram.h
@@ -105,7 +105,7 @@
     // Constants are strictly accessed by programetic loads.
     ObjectBaseRef<Allocation> *mTextures;
     ObjectBaseRef<Sampler> *mSamplers;
-
+    RsTextureTarget *mTextureTargets;
     bool loadShader(Context *, uint32_t type);
 };