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>.

Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: d05756f0a246af3126c4f5fc44d7d3a0f1943b9a

sippet/webrtc,sippet/webrtc,sippet/webrtc,sippet/webrtc,sippet/webrtc,sippet/webrtc