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

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https://hg.mozilla.org/integration/gaia-central/rev/3d666dadf72f
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #17689 from askeing/988754

Bug 988754 - Fix test_call_contact.py

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https://hg.mozilla.org/integration/gaia-central/rev/5eee3659ff82
Author: askeing <askeing@gmail.com>
Desc: Bug 988754 - Fix test_call_contact.py
Bumping manifests a=b2g-bump