Cleanup includes for rs/cpp to not expose internal details.

Change-Id: Ib23f591f8418d3318f61ab1d3f6f2b684bf95692
diff --git a/cpp/rsCppInternal.h b/cpp/rsCppInternal.h
index 81b690f..69857d7 100644
--- a/cpp/rsCppInternal.h
+++ b/cpp/rsCppInternal.h
@@ -17,8 +17,11 @@
 #ifndef ANDROID_RS_CPP_INTERNAL_H
 #define ANDROID_RS_CPP_INTERNAL_H
 
+
 #define LOG_TAG "rsC++"
 #include "rsCppUtils.h"
+#include "rsInternalDefines.h"
+#include "rsDispatch.h"
 
 #define tryDispatch(rs, dispatch)               \
     if (rs->getError() == RS_SUCCESS) {         \