Add MCLinker hooks to libbcc.

Change-Id: I3f1260537d719f9501a1d6a140f02c258231b7c2
diff --git a/libbcc.mk b/libbcc.mk
index 936573b..71cf856 100644
--- a/libbcc.mk
+++ b/libbcc.mk
@@ -23,6 +23,7 @@
 #=====================================================================
 
 LLVM_ROOT_PATH          := external/llvm
+MCLD_ROOT_PATH          := frameworks/compile/mclinker
 RSLOADER_ROOT_PATH      := frameworks/compile/linkloader
 
 #=====================================================================
@@ -42,3 +43,8 @@
 # Related Makefile Paths of LLVM
 #=====================================================================
 include $(LLVM_ROOT_PATH)/llvm.mk
+
+#=====================================================================
+# Related Makefile Paths of MCLinker
+#=====================================================================
+include $(MCLD_ROOT_PATH)/mcld.mk