Add support for openSUSE ARM Triples

Summary: Add support for armv6hl-suse-linux-gnueabi and armv7hl-suse-linux-gnueabi triples used by openSUSE/SUSE.

Reviewers: cfe-commits, rovka, compnerd, rengolin

Reviewed By: rengolin

Subscribers: aemerson, rengolin, bkramer, chandlerc

Differential Revision: https://reviews.llvm.org/D32347

llvm-svn: 300969