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

========

https://hg.mozilla.org/integration/gaia-central/rev/2b9edcc177a8
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #23945 from RudyLu/keyboard/Bug1065922

Bug 1065922 - Pinyin and Zhuyin layout have duplicate period keys in its alternative char menu.
r=timdream.

========

https://hg.mozilla.org/integration/gaia-central/rev/054babb606d1
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 1065922 - Pinyin and Zhuyin layout have duplicate period keys in its
alternative char menu.
 - Remove redundant period symbol from the alternative char menu.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "37ff07d95f189268c73477f4c03502c6d7105750", 
+    "revision": "2b9edcc177a860ae39c87bd027b6cf373dcce563", 
     "repo_path": "/integration/gaia-central"
 }