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

========

https://hg.mozilla.org/integration/gaia-central/rev/4934835d11f6
Author: Gregor Wagner <anygregor@gmail.com>
Desc: Merge pull request #17784 from gregorwagner/bug989785

Bug 989785 - Disable failing test. r=me

========

https://hg.mozilla.org/integration/gaia-central/rev/c2287557f2e1
Author: Gregor Wagner <anygregor@gmail.com>
Desc: Bug 989785 - Disable failing test. r=me

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "5b01e644891fdda1d135fdbeda5a3224b53c7bb2", 
+    "revision": "4934835d11f6893c8cfc18fbe794b2e68bb726a2", 
     "repo_path": "/integration/gaia-central"
 }