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

========

https://hg.mozilla.org/integration/gaia-central/rev/b07dbb49ec85
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Merge pull request #25837 from opatinowebrtc/bug1091775_new_images_for_status_bar

Bug 1091775 - network-activity.png framerate is too high (30), should be lower (~4). r=etienne

========

https://hg.mozilla.org/integration/gaia-central/rev/14f7b6c7c3a4
Author: Oscar Patiño <opatinowebrtc@gmail.com>
Desc: bug 1091775 - adding new png files for status bar
Bumping manifests a=b2g-bump