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: http://webrtc.googlecode.com/svn/trunk@7343 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/build/common.gypi b/webrtc/build/common.gypi
index fdf1abe..8be9ecc 100644
--- a/webrtc/build/common.gypi
+++ b/webrtc/build/common.gypi
@@ -108,7 +108,7 @@
 
     # Define MIPS architecture variant, MIPS DSP variant and MIPS FPU
     # This may be subject to change in accordance to Chromium's MIPS flags
-    'mips_arch_variant%': 'mips32r1',
+    'mips_arch_variant%': 'r1',
     'mips_dsp_rev%': 0,
     'mips_fpu%' : 1,
     'enable_android_opensl%': 1,
@@ -269,7 +269,7 @@
               '-msoft-float',
             ],
           }],
-          ['mips_arch_variant=="mips32r2"', {
+          ['mips_arch_variant=="r2"', {
             'defines': [
               'MIPS32_R2_LE',
             ],