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

========

https://hg.mozilla.org/integration/gaia-central/rev/9ad7c6544e69
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20510 from KevinGrandon/bug_1025236_statusbar_transition

Bug 1025236 - [Vertical] Statusbar transition not correct when scrolling

========

https://hg.mozilla.org/integration/gaia-central/rev/605ff5d874da
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1025236 - [Vertical] Statusbar transition not correct when scrolling r=me
Bumping manifests a=b2g-bump