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

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https://hg.mozilla.org/integration/gaia-central/rev/0189dcf3b97f
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Merge pull request #13005 from EverythingMe/928946-lazy-modules

Bug 928946 - [e.me] Lazy load Banner, ConnectionMessage and Location mod...

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https://hg.mozilla.org/integration/gaia-central/rev/10967a70e93a
Author: Amir Nissim <amirn@everything.me>
Desc: Bug 928946 - [e.me] Lazy load Banner, ConnectionMessage and Location modules

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "a57a913f1dd723afa191124f27b8d9fc4b0cb1c0", 
+    "revision": "0189dcf3b97fa59e54243d6b434d2c1e9a64e75d", 
     "repo_path": "/integration/gaia-central"
 }