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

========

https://hg.mozilla.org/integration/gaia-central/rev/5d46c263ad4a
Author: Fabien Cazenave <fabien@cazenave.cc>
Desc: Merge pull request #10716 from leob2g/Bug_888818_Missing_localization_default_media_location

Bug 888818 - [Settings] missing localization of default media location popup, r=kaze

========

https://hg.mozilla.org/integration/gaia-central/rev/ce3245c8cf63
Author: hyuna.cho <hyuna.cho@lge.com>
Desc: Bug 888818 - [Settings] missing localization of default media location popup