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

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https://hg.mozilla.org/integration/gaia-central/rev/f40e22dfa135
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1117713 - merge pull request #27643 from millermedeiros:1117713-all-day-toggle-duration to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/339dd5346626
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 1117713 - [Calendar] Disable "All day" when creating an event,tap Save, it will pop up alert message "Something is wrong.Try again later."

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "b788545f3c5bcffa6e38e9a39b548cf609409f7e", 
+        "git_revision": "f0ec475d0708442a00aa4e62792ccb6b32f8a52a", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "d6069f520c0ecf3f8dfcf9982422e7d4809eed9b", 
+    "revision": "f40e22dfa135ddc81545a6a87c0e17bc3483ca62", 
     "repo_path": "integration/gaia-central"
 }