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

========

https://hg.mozilla.org/integration/gaia-central/rev/ae627dae4911
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #20973 from steveck-chung/bug-1022644

Bug 1022644 - [Messages] Can't open the recipient panel if there are only 2 lines of recipients. r=azasypkin

========

https://hg.mozilla.org/integration/gaia-central/rev/2d3c62dc3557
Author: Steve Chung <schung@mozilla.com>
Desc: Bug 1022644 - [Messages] Can't open the recipient panel if there are only 2 lines of recipients
Bumping manifests a=b2g-bump