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

========

https://hg.mozilla.org/integration/gaia-central/rev/e60b92d4daf4
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Merge pull request #20589 from dmarcos/bug1022880

Bug 1022880 - [Camera] Add focus state color to the continuous auto focu...

========

https://hg.mozilla.org/integration/gaia-central/rev/d278767a4589
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Bug 1022880 - [Camera] Add focus state color to the continuous auto focus ring
Bumping manifests a=b2g-bump