Update LLVM for merge to 3.4.

Update LLVM for merge to 3.4.

Update config.h files.

Add RS SubtargetFeature for +long64 on ARM devices.

Adjust Android.mk for added/removed files:

+  Delinearization.cpp
-  PathNumbering.cpp
-  PathProfileInfo.cpp
-  PathProfileVerifier.cpp
-  ProfileDataLoader.cpp
-  ProfileDataLoaderPass.cpp
-  ProfileEstimatorPass.cpp
-  ProfileInfo.cpp
-  ProfileInfoLoader.cpp
-  ProfileInfoLoaderPass.cpp
-  ProfileVerifierPass.cpp

+  LiveRegUnits.cpp
-  ShrinkWrapping.cpp
+  StackMaps.cpp
-  StrongPHIElimination.cpp

+  DIEHash.cpp

+  LegacyPassManager.cpp

+  ELF.cpp

+  Unicode.cpp

-  MipsOptimizeMathLibCalls.cpp

-  MipsELFStreamer.cpp
+  MipsTargetStreamer.cpp

-  EdgeProfiling.cpp
+  DataFlowSanitizer.cpp
+  DebugIR.cpp
-  OptimalEdgeProfiling.cpp
-  PathProfiling.cpp
-  ProfilingUtils.cpp

-  BasicBlockPlacement.cpp
+  LoopRerollPass.cpp
+  PartiallyInlineLibCalls.cpp
+  SampleProfile.cpp

+  GlobalStatus.cpp

Change-Id: I17dcf0bf53a1720acd8226ae3e30d84993562a91