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

========

https://hg.mozilla.org/integration/gaia-central/rev/c9e3c466198a
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #26227 from KevinGrandon/bug_1100806_autolander_graph

Bug 1100806 - Implement a taskgraph just for +autolander

========

https://hg.mozilla.org/integration/gaia-central/rev/38da1af9b1ee
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1100806 - Implement a taskgraph just for autolander r=lightsofapollo
Bumping manifests a=b2g-bump