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

========

https://hg.mozilla.org/integration/gaia-central/rev/ce8e42aa3688
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #24761 from steveck-chung/message-report-view-refresh-and-test

Bug 1021608 - [Messages] Report view visual refresh, r=julienw

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https://hg.mozilla.org/integration/gaia-central/rev/0a1a37ca7d14
Author: Steve Chung <schung@mozilla.com>
Desc: Bug 1021608 - [Messages] Report view visual refresh, r=julienw

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "31ffa784772393a36a3274962b07c4e7ed6813fb", 
+    "revision": "ce8e42aa3688f56113d68bc82409a7fea055547b", 
     "repo_path": "/integration/gaia-central"
 }