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

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https://hg.mozilla.org/integration/gaia-central/rev/c12176d2e60b
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #27367 from steveck-chung/message-kb-popup-fix

Bug 1118963 - [Messages][SMS] Keyboard Lingers in thread list after Group Message with broken UI. r=azasypkin

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https://hg.mozilla.org/integration/gaia-central/rev/dcd2b5992b83
Author: Steve Chung <schung@mozilla.com>
Desc: Bug 1118963 - [Messages] Keyboard Lingers in thread list after Group Message, breaks UI when used. r=azasypkin

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "28c97f338834354acee01e3290e8f3b0f9f04816", 
+    "revision": "c12176d2e60bf9fd205aa51506c2677ec5e4313b", 
     "repo_path": "integration/gaia-central"
 }