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

========

https://hg.mozilla.org/integration/gaia-central/rev/7fb1da42e432
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #31510 from gasolin/issue-1197735

Bug 1197735 - [Bluetooth] proper process _onDefaultAdapterChanged stat, r=tim

========

https://hg.mozilla.org/integration/gaia-central/rev/95a2b038f7c3
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1197735 - [Bluetooth] proper process _onDefaultAdapterChanged stat, r=tim

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "31e595f86f6bf159b3a9a46816a6ac00a55ca9f9", 
+        "git_revision": "fb2ba25bf70efc88d74b2b96c1e9e3203d54aff1", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "15ba43fc66bdea9bfe6397bb992c0918d9d3d77c", 
+    "revision": "7fb1da42e432aedd37b241f0a4b64618c29fadfa", 
     "repo_path": "integration/gaia-central"
 }