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

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https://hg.mozilla.org/integration/gaia-central/rev/b89c91b45508
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #23906 from flodolo/bug1065323

Bug 1065323 - [Settings] 'Add' button is not localizable in FDN - Authorized Numbers r=arthurcc

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https://hg.mozilla.org/integration/gaia-central/rev/130101447318
Author: Francesco Lodolo (:flod) <flod@lodolo.net>
Desc: Bug 1065323 - 'Add' button is not localizable in FDN - Authorized Numbers

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "eb1bd7d44b158d8c4a71a8f783ba9a0881a046ea", 
+    "revision": "b89c91b455083beee43f0cd4254965784f01509c", 
     "repo_path": "/integration/gaia-central"
 }