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

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https://hg.mozilla.org/integration/gaia-central/rev/3bafd28fc904
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Merge pull request #16631 from jaoo/971816

Bug 971816 - [OTA][Data Migration] Voicemail number will restored back default setting in SIM card after updating from v1.1 to v1.3. r=qDot

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https://hg.mozilla.org/integration/gaia-central/rev/069f2e7ca4e0
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Bug 971816 - [OTA][Data Migration] Voicemail number will restored back default setting in SIM card after updating from v1.1 to v1.3
Bumping manifests a=b2g-bump