Enable protected visibility on ARM.

llvm-svn: 36583
diff --git a/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp b/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp
index 3d24d60..b4b4da1 100644
--- a/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp
@@ -27,6 +27,7 @@
     SetDirective = "\t.set";
     WeakRefDirective = "\t.weak_reference\t";
     HiddenDirective = "\t.private_extern\t";
+    ProtectedDirective = NULL;
     JumpTableDataSection = ".const";
     CStringSection = "\t.cstring";
     FourByteConstantSection = "\t.literal4\n";