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

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https://hg.mozilla.org/integration/gaia-central/rev/f8a8e3a65150
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #28539 from martasect/Bug_1136286

Bug 1136286 - There is no way to x out of the Guided Tour on a few pages

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https://hg.mozilla.org/integration/gaia-central/rev/9f3a48bd0370
Author: Marta Piekarska <marta@sec.t-labs.tu-berlin.de>
Desc: Bug 1136286 - There is no way to x out of the Guided Tour on a few pages

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "b96850646d82550218d419200534f931675d06f1", 
+        "git_revision": "0c4e8b0b330757e261b031b7e7f326ef419c9808", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "5366997066b72558c1d3edca122614fcb4d8f1f7", 
+    "revision": "f8a8e3a65150eaf7a870a4e75ad6bbea833390ee", 
     "repo_path": "integration/gaia-central"
 }