Fix LTO after the recent MC subtarget refactoring.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134930 91177308-0d34-0410-b5e6-96231b3b80d8

tools/lto/LTOCodeGenerator.cpp

@@ -73,6 +73,7 @@ LTOCodeGenerator::LTOCodeGenerator()
       _nativeObjectFile(NULL)
 {
     InitializeAllTargets();
+    InitializeAllMCSubtargetInfos();
     InitializeAllAsmPrinters();
 }