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

========

https://hg.mozilla.org/integration/gaia-central/rev/990c071a9214
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Merge pull request #27473 from takenspc/bug1123023

Bug 1123023 - [Homescreen] toggle buttons are not labeled. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/02857e096f9d
Author: Takeshi Kurosawa <taken.spc@gmail.com>
Desc: Bug 1123023 - [Homescreen] toggle buttons are not labeled

- Add labels to the buttons

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "e280a660955bbdab265d50f8d9e009de34082332", 
+        "git_revision": "db36424ccef9d601ece913a804f40a01bbb81bef", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "c652fe8c56b48721611f4a004ba1324c5279c3d8", 
+    "revision": "990c071a9214f8df1aed5a4562924313c6152b22", 
     "repo_path": "integration/gaia-central"
 }