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

========

https://hg.mozilla.org/integration/gaia-central/rev/9b9d9968b89b
Author: Tzu-Lin Huang <dwi019@gmail.com>
Desc: Merge pull request #26520 from dwi2/bug1105588

Bug 1105588 - [Stingray][System] allow - in oop black list

========

https://hg.mozilla.org/integration/gaia-central/rev/6717964b16a7
Author: Tzu-Lin Huang <tzhuang@mozilla.com>
Desc: Bug 1105588 - [Stingray][System] allow - in oop black list

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "b22a8f312aae5a7ab413d930067785318ddff0a5", 
+    "revision": "9b9d9968b89b9bf324160d0cb1bdc242837d21ec", 
     "repo_path": "integration/gaia-central"
 }