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

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https://hg.mozilla.org/integration/gaia-central/rev/5c08f3d8a2b9
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #11131 from lightsofapollo/bug-876788

Bug 876788 - Fix bug where Caldav Provider fired syncEvents sync instead...

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https://hg.mozilla.org/integration/gaia-central/rev/80276e7f6acc
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 876788 - Fix bug where Caldav Provider fired syncEvents sync instead of async

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "6a508a816badce57fe3f6e043b012b6cfd1f5352", 
+    "revision": "5c08f3d8a2b96b15b232dae43a2428fcdca61a79", 
     "repo_path": "/integration/gaia-central"
 }