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

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https://hg.mozilla.org/integration/gaia-central/rev/deb008657a37
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Merge pull request #21935 from Rik/dialEmergency-1027478

Bug 1027478 - Modify telephony API from dialEmergency(number, serviceId)... r=drs

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https://hg.mozilla.org/integration/gaia-central/rev/8febad3913e4
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Bug 1027478 - Modify telephony API from dialEmergency(number, serviceId) to dialEmergency(number)
Bumping manifests a=b2g-bump