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

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https://hg.mozilla.org/integration/gaia-central/rev/7fa372bfb15c
Author: Dale  Harvey <dale@arandomurl.com>
Desc: Merge pull request #10992 from leob2g/Bug_894196_CB_msg_title_error

Bug 894196 - [CB] Disapper the title background alert and need to display. r=daleharvey

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https://hg.mozilla.org/integration/gaia-central/rev/8f36202972b7
Author: hyuna.cho <hyuna.cho@lge.com>
Desc: Bug 894196 - [CB] Disapper the title background alert and need to display channel info

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "9cb1fec488aeabdb5dbab890a7a5f2288d3edbdb", 
+    "revision": "7fa372bfb15c8d8f1ad22d70af111bbe3a9adeef", 
     "repo_path": "/integration/gaia-central"
 }