Use prebuilt libclang_rt.profile.

Bug: 17574078
Change-Id: I4838cd5d125a0b2bf76aad2fdaef1ee3122687e8
diff --git a/core/clang/TARGET_x86.mk b/core/clang/TARGET_x86.mk
index 3ba34ae..4e9e8be 100644
--- a/core/clang/TARGET_x86.mk
+++ b/core/clang/TARGET_x86.mk
@@ -72,3 +72,5 @@
 $(clang_2nd_arch_prefix)RS_TRIPLE := armv7-none-linux-gnueabi
 $(clang_2nd_arch_prefix)RS_TRIPLE_CFLAGS := -D__i386__
 $(clang_2nd_arch_prefix)RS_COMPAT_TRIPLE := i686-linux-android
+
+$(clang_2nd_arch_prefix)TARGET_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-i686-android.a