Use armv6k default for FreeBSD/ARM

Patch by Andrew Turner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217454 91177308-0d34-0410-b5e6-96231b3b80d8
Merge alignment of common GlobalValue.

Fixes pr20882.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217455 91177308-0d34-0410-b5e6-96231b3b80d8