From-SVN: r267494
libgcc/ChangeLog: 2018-11-09 Stafford Horne <shorne@gmail.com> Richard Henderson <rth@twiddle.net> * config.host: Add OpenRISC support. * config/or1k/*: New. Co-Authored-By: Richard Henderson <rth@twiddle.net> From-SVN: r265961