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

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https://hg.mozilla.org/integration/gaia-central/rev/ec68d581ee89
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1126953 - merge pull request #27755 from KevinGrandon:bug_1126953_autolander_test to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/edb9ea6be9cb
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1126953 - Autolander test bug, remove strings for quick settings dialog r=kgrandon

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "a40ad03d29ad139a3a9a53995e8f66f9e29181fb", 
+        "git_revision": "386f04657ee76f8ad5c5ddbbeb9630ce187abd2f", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "89b933ff0c623d8cbd5e5e969a3d25db8c84b0de", 
+    "revision": "ec68d581ee89a6e75b36c9c15e4e26fc725d89a0", 
     "repo_path": "integration/gaia-central"
 }