Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/ecfb83057457
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert " Bug 1055972 - disable keyboard uninstallation test."

This reverts commit e276b38a14e89c8b5bb36052f475d37716656d2a.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "839bc16aa4da0636ad760574810909f0bd4bccfd", 
+    "revision": "ecfb8305745716f534e782c7b9df11aaa78b3823", 
     "repo_path": "/integration/gaia-central"
 }