Use prebuilt libclang_rt.profile.

Bug: 17574078
Change-Id: I4838cd5d125a0b2bf76aad2fdaef1ee3122687e8
diff --git a/core/clang/config.mk b/core/clang/config.mk
index 60889e7..ba48f63 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -8,6 +8,7 @@
 
 LLVM_PREBUILTS_VERSION := 3.6
 LLVM_PREBUILTS_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/$(LLVM_PREBUILTS_VERSION)/bin
+LLVM_RTLIB_PATH := $(LLVM_PREBUILTS_PATH)/../lib/clang/$(LLVM_PREBUILTS_VERSION)/lib/linux/
 
 CLANG := $(LLVM_PREBUILTS_PATH)/clang$(BUILD_EXECUTABLE_SUFFIX)
 CLANG_CXX := $(LLVM_PREBUILTS_PATH)/clang++$(BUILD_EXECUTABLE_SUFFIX)