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

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https://hg.mozilla.org/integration/gaia-central/rev/f5f41d05a727
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #13094 from crh0716/928325

Bug 928325 - Add check before using multiple sim API for backward compatibility

========

https://hg.mozilla.org/integration/gaia-central/rev/0a1108ccdab0
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 928325 - Add backward compatibility on new WebIccManager APIs

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "e7442299131f53d026ffad88ce6c79f02387c79d", 
+    "revision": "f5f41d05a7277ddb9466aa4235204b817a5e89a6", 
     "repo_path": "/integration/gaia-central"
 }