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

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https://hg.mozilla.org/integration/gaia-central/rev/7eadade805f5
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #16653 from KevinGrandon/bug_976546_utility_tray_shown

Bug 976546 - User should not be able to pull down utility tray before unlock

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https://hg.mozilla.org/integration/gaia-central/rev/046c33eed6b5
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 976546 - User should not be able to pull down utility tray before unlock

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "f8f59781300e21ae572c7c4aff65b0938d078b27", 
+    "revision": "7eadade805f531e127379e4450d12feb38a66e56", 
     "repo_path": "/integration/gaia-central"
 }