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

========

https://hg.mozilla.org/integration/gaia-central/rev/a49cf1c4be50
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #19304 from crh0716/1010394_1

Bug 1010394 - Refresh the items when entering the carrier panel r=jaoo

========

https://hg.mozilla.org/integration/gaia-central/rev/3bd4fd07052a
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 1010394 - Refresh the items when entering the carrier panel
Bumping manifests a=b2g-bump