Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF.

Original patch by Sandeep Patel and updated by me.

llvm-svn: 94582
diff --git a/llvm/lib/MC/MCAsmInfo.cpp b/llvm/lib/MC/MCAsmInfo.cpp
index 4a86e1d..12d2fcb 100644
--- a/llvm/lib/MC/MCAsmInfo.cpp
+++ b/llvm/lib/MC/MCAsmInfo.cpp
@@ -51,6 +51,7 @@
   GlobalDirective = "\t.globl\t";
   SetDirective = 0;
   HasLCOMMDirective = false;
+  COMMDirectiveAlignmentIsInBytes = true;
   HasDotTypeDotSizeDirective = true;
   HasSingleParameterDotFile = true;
   HasNoDeadStrip = false;