Changed mips_arch_variant variable value corresponding to Chromium code changes.
Changed mips_arch_variant variable value corresponding to Chromium code changes.

Chromium commit URL: https://crrev.com/c8a5da7455b57b2399e4a69e8100c098d9870052

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/23809004

Patch from Ljubomir Papuga <lpapuga@mips.com>.

git-svn-id: 917f5d3ca488f358c4d40eaec14422cf392ccec9@7343 4adac7df-926f-26a2-2b94-8c16560cd09d

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