Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/fac1fdcfca2a
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #21650 from vingtetun/gallery.settings.permission

Bug 1033255 - [Gallery] Remove the settings permission from the manifest...

========

https://hg.mozilla.org/integration/gaia-central/rev/3f50e737cea0
Author: Vivien Nicolas <vnicolas@mozilla.com>
Desc: Bug 1033255 - [Gallery] Remove the settings permission from the manifest. r=pdahiya

========

https://hg.mozilla.org/integration/gaia-central/rev/2b7626e451d9
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #21649 from vingtetun/video.settings.permission

Bug 1033255 - [Video] Remove the settings permission from the manifest. ...

========

https://hg.mozilla.org/integration/gaia-central/rev/b605d4ad10dc
Author: Vivien Nicolas <vnicolas@mozilla.com>
Desc: Bug 1033255 - [Video] Remove the settings permission from the manifest. r=johu
Bumping manifests a=b2g-bump