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

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https://hg.mozilla.org/integration/gaia-central/rev/22676ea57975
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #20792 from crh0716/1022710

Bug 1022710 - Do not update the visibility of the items when the voice type is null r=eragon

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https://hg.mozilla.org/integration/gaia-central/rev/66a7b846016a
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 1022710 - Do not update the visibility of the items when the voice type is null

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "00fa531efc85eb0b53bc52121efea598aef19e67", 
+    "revision": "22676ea57975d2d342a6fee1387e9dca4aefe7ef", 
     "repo_path": "/integration/gaia-central"
 }