Bumping gaia.json for 1 gaia-central revision(s)

========

https://hg.mozilla.org/integration/gaia-central/rev/bc11fb84b0ae
Author: cctuan <georgeiscoming@gmail.com>
Desc: Revert "Bug 896934 - [Settings] Listen new system message for Bluetooth pairing requests in connectivity.js"

This reverts commit 125d2e74097c200649375abd446251adf3f2bab9.