Fix an old copy-n-paste

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127020 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsFrameLowering.h b/lib/Target/Mips/MipsFrameLowering.h
index a8426c1..34647df 100644
--- a/lib/Target/Mips/MipsFrameLowering.h
+++ b/lib/Target/Mips/MipsFrameLowering.h
@@ -11,8 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef ALPHA_FRAMEINFO_H
-#define ALPHA_FRAMEINFO_H
+#ifndef MIPS_FRAMEINFO_H
+#define MIPS_FRAMEINFO_H
 
 #include "Mips.h"
 #include "MipsSubtarget.h"