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

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https://hg.mozilla.org/integration/gaia-central/rev/f1f04d6c6f24
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #18280 from anefzaoui/issue-985849

 Bug 985849 - [Settings] Add icons to Volume adjustment Seek Bar r=crh0716

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https://hg.mozilla.org/integration/gaia-central/rev/71160bb27b14
Author: anefzaoui <nefzaoui.ahmed@hotmail.com>
Desc:  Bug 985849 - [Settings] Add icons to Volume adjustment Seek Bar

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "4bb50090b876651e273b453435a2587d7675b54c", 
+    "revision": "f1f04d6c6f247e9a83960903e2f15774f07ca579", 
     "repo_path": "/integration/gaia-central"
 }