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

========

https://hg.mozilla.org/integration/gaia-1_4/rev/384945eed279
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #21457 from justindarc/bug1035082-v1.4

Bug 1035082 - [Dolphin][Camera] Cannot set a photo as a wallpaper after ...

========

https://hg.mozilla.org/integration/gaia-1_4/rev/f12823fa1041
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1035082 - [Dolphin][Camera] Cannot set a photo as a wallpaper after taking a photo
Bumping manifests a=b2g-bump