Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/f1780ba84565
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #26257 from chirarobert/bug_1100994

Bug 1100994 - [v2.2] Fix test_settings_device_info.py failure

========

https://hg.mozilla.org/integration/gaia-central/rev/72068b0d3e50
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1100994 - [v2.2] Fix test_settings_device_info.py failure

========

https://hg.mozilla.org/integration/gaia-central/rev/3abadcdbd9ce
Author: Dale Harvey <dale@arandomurl.com>
Desc: Bug 1100305 - Disable intermittent failing browser test. r=me

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "4f3818d9c5577c26d8368fad5e87e546519c4b13", 
+    "revision": "f1780ba8456558491b1bce02e0951045eb11d0ba", 
     "repo_path": "integration/gaia-central"
 }