Bring in fixes for Cortex-A53 errata + build updates.

Bug: 18034609

Change-Id: I2cf0094eb9df801a84274ff29018431d75da89dd
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp
index f44e4d1..0ae495c 100644
--- a/lib/CodeGen/MachineSink.cpp
+++ b/lib/CodeGen/MachineSink.cpp
@@ -292,7 +292,7 @@
   if (!CEBCandidates.insert(std::make_pair(From, To)))
     return true;
 
-  if (!MI->isCopy() && !MI->isAsCheapAsAMove())
+  if (!MI->isCopy() && !TII->isAsCheapAsAMove(MI))
     return true;
 
   // MI is cheap, we probably don't want to break the critical edge for it.