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

========

https://hg.mozilla.org/integration/gaia-central/rev/44222c917231
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Merge pull request #12984 from manzee/master

Bug 870266 - Include phone number in the option list from call history r=rik

========

https://hg.mozilla.org/integration/gaia-central/rev/a0656fa85422
Author: Manjunatha Madana <manjunatha.m@borqs.com>
Desc: Bug 870266 - Include phone number in the option list from call history.