Match LLVM API change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135813 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/driver/cc1as_main.cpp b/tools/driver/cc1as_main.cpp
index 1796730..db05709 100644
--- a/tools/driver/cc1as_main.cpp
+++ b/tools/driver/cc1as_main.cpp
@@ -365,11 +365,7 @@
   InitializeAllTargetInfos();
   // FIXME: We shouldn't need to initialize the Target(Machine)s.
   InitializeAllTargets();
-  InitializeAllMCAsmInfos();
-  InitializeAllMCCodeGenInfos();
-  InitializeAllMCInstrInfos();
-  InitializeAllMCRegisterInfos();
-  InitializeAllMCSubtargetInfos();
+  InitializeAllTargetMCs();
   InitializeAllAsmPrinters();
   InitializeAllAsmParsers();