Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/13e7783ef0a3
Author: No-Jun Park <npark@mozilla.com>
Desc: Merge pull request #29436 from npark-mozilla/1152940

Bug 1152940 - Update test_play_3gp_video.py in imagecompare test suite

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https://hg.mozilla.org/integration/gaia-central/rev/e8f9d3d7bd27
Author: No-Jun Park <npark@mozilla.com>
Desc: Bug 1152940 - Update test_play_3gp_video.py in imagecompare test suite

Remove unnecessary screencapture,
incorporate the fix from Bug 1150573
add proper wait after rewind

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "1a92368407df6f3bab5de4e86e2a0d2358a1447b", 
+        "git_revision": "25126ee25ffc9d46c2cba96dd2bf64fb63c67b8d", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "1572d6b1bc57b0466a9a626b9a549464aa06172a", 
+    "revision": "13e7783ef0a3f6183dee9c22eac675475702e4aa", 
     "repo_path": "integration/gaia-central"
 }