libyuv: Add Android x86, x64 and MIPS bots.

scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android_x86.json

Index: scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android_x86.json
diff --git a/scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android.json b/scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android_x86.json
similarity index 97%
copy from scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android.json
copy to scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android_x86.json
index 4ef46c53c12efe68a32d958bb9a7e44df7ef5a84..4eccf873bd40de4f24013382d56b62b7c31860d3 100644
--- a/scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android.json
+++ b/scripts/slave/recipes/libyuv/libyuv.expected/tryserver_libyuv_android_x86.json
@@ -7,7 +7,7 @@
       "--master",
       "tryserver.libyuv",
       "--builder",
-      "android",
+      "android_x86",
       "--slave",
       "slavename",
       "--spec",
@@ -59,7 +59,7 @@
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
       "GYP_CROSSCOMPILE": "1",
-      "GYP_DEFINES": "OS=android component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=arm use_goma=1",
+      "GYP_DEFINES": "OS=android component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=ia32 use_goma=1",
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient runhooks"