Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/c5cc02744017
Author: Alive.Kuo <alegnadise@gmail.com>
Desc: Merge pull request #10313 from alivedise/bugzilla/870316/add-vibration-icon-back

Bug 870316 - add vibration icon back, r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/80fb6ac6e9d8
Author: Alive Kuo <alegnadise@gmail.com>
Desc: Bug 870316 - add vibration icon back

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "6b0f94b457ebd9b4f0e82cb2f82dddd6b4f26561", 
+    "revision": "c5cc027440172d9b2e94bda6d44551049da6ce89", 
     "repo_path": "/integration/gaia-central"
 }