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

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https://hg.mozilla.org/integration/gaia-central/rev/a37735733273
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1121343 - merge pull request #27412 from mancas:bug1121343 to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/60056de4579e
Author: Manuel <manuel.casasbarrado@telefonica.com>
Desc: Bug 1121343 - [FTE] Notification indicator shows during FTE, but un-actionable. r=etienne

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "be2020a41d300ddfbef858e5bcff99d90b0fa2c8", 
+        "git_revision": "2a2b008f9ae957fe19ad540d233d86b5c0b6829e", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "872335b68daf57fd89d220c622de6131d6c44ef5", 
+    "revision": "a37735733273b7cf2aee44ea123195bb610d0a8e", 
     "repo_path": "integration/gaia-central"
 }