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

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https://hg.mozilla.org/integration/gaia-central/rev/6c183e1466d6
Author: Dale  Harvey <dale@arandomurl.com>
Desc: Merge pull request #11103 from daleharvey/796563

Bug 796563 - Add animation when entering and leaving settings. r=benfrancis

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https://hg.mozilla.org/integration/gaia-central/rev/fb8a0e633da4
Author: Dale Harvey <dale@arandomurl.com>
Desc: Bug 796563 - Add animation when entering and leaving settings

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "14566701e80ead7675d70f65ac5eb793520a31fd", 
+    "revision": "6c183e1466d64b6c4122930a19cab425a6c32107", 
     "repo_path": "/integration/gaia-central"
 }