Refine DebugHelper.h into Log.h.

This removes USE_FUNC_LOGGER from libbcc-config.mk.

Change-Id: Ia496d41388135706a501bd362075f53d1c0eb6aa
diff --git a/lib/RenderScript/RSCompiler.cpp b/lib/RenderScript/RSCompiler.cpp
index 4325f11..324696f 100644
--- a/lib/RenderScript/RSCompiler.cpp
+++ b/lib/RenderScript/RSCompiler.cpp
@@ -25,7 +25,7 @@
 #include "bcc/RenderScript/RSScript.h"
 #include "bcc/RenderScript/RSTransforms.h"
 #include "bcc/Source.h"
-#include "bcc/Support/DebugHelper.h"
+#include "bcc/Support/Log.h"
 
 using namespace bcc;