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

========

https://hg.mozilla.org/integration/gaia-central/rev/37b9db0c5bc0
Author: Ian Liu <iliu@mozilla.com>
Desc: Merge pull request #17117 from ian-liu/bluetooth/visual_refresh_of_bluetooth_icon

Bug 979981 - [B2G] [Bluetooth] Truncated devices names will have their ellipses overlap the icon, r=@crh0716

========

https://hg.mozilla.org/integration/gaia-central/rev/0b2a64c3f579
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 979981 - [B2G] [Bluetooth] Truncated devices names will have their ellipses overlap the icon
Bumping manifests a=b2g-bump