Support custom RenderScript compiler

Change-Id: I85e38e84565e04f99dd26217f280274883dc322d
diff --git a/core/definitions.mk b/core/definitions.mk
index 6db9d8f..fe4b534 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -781,7 +781,7 @@
 $(hide) rm -rf $(PRIVATE_RS_OUTPUT_DIR)
 $(hide) mkdir -p $(PRIVATE_RS_OUTPUT_DIR)/res/raw
 $(hide) mkdir -p $(PRIVATE_RS_OUTPUT_DIR)/src
-$(hide) $(LLVM_RS_CC) \
+$(hide) $(PRIVATE_RS_CC) \
   -o $(PRIVATE_RS_OUTPUT_DIR)/res/raw \
   -p $(PRIVATE_RS_OUTPUT_DIR)/src \
   -d $(PRIVATE_RS_OUTPUT_DIR) \