Fix formatting in AArch64 backend.

This should fix three purely whitespace issues:
    + 80 column violations.
    + Tab characters.
    + TableGen brace placement.

No functional changes.

llvm-svn: 174370
diff --git a/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.h b/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.h
index bf5cadf..37c1cc5 100644
--- a/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.h
+++ b/llvm/lib/Target/AArch64/AArch64MachineFunctionInfo.h
@@ -121,7 +121,9 @@
   void setBytesInStackArgArea (unsigned bytes) { BytesInStackArgArea = bytes;}
 
   unsigned getArgumentStackToRestore() const { return ArgumentStackToRestore; }
-  void setArgumentStackToRestore(unsigned bytes) { ArgumentStackToRestore = bytes; }
+  void setArgumentStackToRestore(unsigned bytes) {
+    ArgumentStackToRestore = bytes;
+  }
 
   unsigned getInitialStackAdjust() const { return InitialStackAdjust; }
   void setInitialStackAdjust(unsigned bytes) { InitialStackAdjust = bytes; }