Update LLVM for merge to r180947.

Change-Id: Ic9e7daa7ef3789298c49a7b308af92115f5d682d
diff --git a/lib/Support/Android.mk b/lib/Support/Android.mk
index be3b2e6..11c6b36 100644
--- a/lib/Support/Android.mk
+++ b/lib/Support/Android.mk
@@ -69,6 +69,7 @@
   Triple.cpp \
   Twine.cpp \
   Valgrind.cpp \
+  Watchdog.cpp \
   circular_raw_ostream.cpp \
   raw_os_ostream.cpp \
   raw_ostream.cpp \