Bumping gaia.json for 4 gaia-central revision(s)

========

https://hg.mozilla.org/integration/gaia-central/rev/5c5b0519cd55
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #10426 from crh0716/873917_v1

Bug 873917 - Use new request pairing message

========

https://hg.mozilla.org/integration/gaia-central/rev/560bf09b4a05
Author: crh0716 <crh0716@gmail.com>
Desc: Bug 873917 - Use new request pairing message

========

https://hg.mozilla.org/integration/gaia-central/rev/3207ba05591c
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #10164 from crdlc/bug-878732

Bug 878732 - Homescreen gets stuck between everything.me screen and time...

========

https://hg.mozilla.org/integration/gaia-central/rev/741be7a8511c
Author: crdlc <crdlc@tid.es>
Desc: Bug 878732 - Homescreen gets stuck between everything.me screen and time display

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "80d3aeb224596a9c619907434890fdac0ce2ed41", 
+    "revision": "5c5b0519cd55723086f57638fab348d0650c01bb", 
     "repo_path": "/integration/gaia-central"
 }