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

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https://hg.mozilla.org/integration/gaia-central/rev/09d0c7b18363
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #13547 from lightsofapollo/fix-settings-locked

Bug 936310 - Fix bug where setting lockscreen.enabled = false in the pro... +shepherd

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https://hg.mozilla.org/integration/gaia-central/rev/689607f5ced7
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 936310 - Fix bug where setting lockscreen.enabled = false in the profile prevents startup

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "1145eee5bd62a8cc769d2c3d5f77516b8564d341", 
+    "revision": "09d0c7b183631d15b74d5708e85a954cdca3ed74", 
     "repo_path": "/integration/gaia-central"
 }