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

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https://hg.mozilla.org/integration/gaia-central/rev/31c7f507816d
Author: Martijn <martijn.martijn@gmail.com>
Desc: Merge pull request #32636 from mwargers/1217037

Bug 1217037 - test_gallery_share_picture.py : TimeoutException: TimeoutException: Timed out after 30.1 seconds

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https://hg.mozilla.org/integration/gaia-central/rev/be977b824f56
Author: Martijn Wargers <mwargers@mozilla.com>
Desc: Bug 1217037 - test_gallery_share_picture.py : TimeoutException: TimeoutException: Timed out after 30.1 seconds

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "afdc49949f49c37d8412059c25cba4cfd6394d7d", 
+        "git_revision": "f61af3d4abab49312f91dd4062f03c7cf245a27d", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "3bae024bfa4318bfbb8ce68e7d23286c6fb63300", 
+    "revision": "31c7f507816d5b6156e37b4a004fbf693f67fbbb", 
     "repo_path": "integration/gaia-central"
 }