Set prefer_fixed_point=1 for the MIPS architecture.

webrtc/build/common.gypi

Index: webrtc/build/common.gypi
diff --git a/webrtc/build/common.gypi b/webrtc/build/common.gypi
index bab0cec97e6943be1fc2e1db7e9c1580d86c114d..ed9b62a7542c75b9b08d3fc9989c1ff3b172a17c 100644
--- a/webrtc/build/common.gypi
+++ b/webrtc/build/common.gypi
@@ -203,7 +203,7 @@
       ['OS=="ios"', {
         'build_libjpeg%': 0,
       }],
-      ['target_arch=="arm" or target_arch=="arm64"', {
+      ['target_arch=="arm" or target_arch=="arm64" or target_arch=="mipsel"', {
         'prefer_fixed_point%': 1,
       }],
       ['(target_arch=="arm" and (arm_neon==1 or arm_neon_optional==1)) or target_arch=="arm64"', {
@@ -499,4 +499,3 @@
     },
   }, # target_defaults
 }
-