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

========

https://hg.mozilla.org/integration/gaia-central/rev/9f88434e3a0e
Author: Yi-Fan Liao <begeeben@gmail.com>
Desc: Merge pull request #22387 from begeeben/1029944_switch_modaldialog_and_appmodaldialog

Bug 1029944 - Switch ModalDialog and AppModalDialog from using strings to using l10nIds, r= Zibi Braniecki [:gandalf]

* Replace mozL10n.get(l10nId) calls with node.setAttribute('data-l10n-id', l10nId) in ModalDialog and its use cases.
* Fix jshint errors.
* Update ModalDialog test.

========

https://hg.mozilla.org/integration/gaia-central/rev/032c743be685
Author: Yi-Fan Liao <begeeben@gmail.com>
Desc: Bug 1029944 - Switch ModalDialog and AppModalDialog from using strings to using l10nIds

* Replace mozL10n.get(l10nId) calls with node.setAttribute('data-l10n-id', l10nId) in ModalDialog and its use cases.
* Fix jshint errors.
* Update ModalDialog test.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "39f8b51560ab77b7333e8d6340697df19a5fa58a", 
+    "revision": "9f88434e3a0e3183fb8600b6e5a39928fc5d03f1", 
     "repo_path": "/integration/gaia-central"
 }