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

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https://hg.mozilla.org/integration/gaia-central/rev/85ce9d1d68fa
Author: Carmen Jiménez <cjc@tid.es>
Desc: Merge pull request #17592 from mcjimenez/bug978785_v2

Bug 978785 - SV: Enable customization during first time to insert a SIM card

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https://hg.mozilla.org/integration/gaia-central/rev/4ec39e6a2e1d
Author: Carmen Jimenez Cabezas <cjc@tid.es>
Desc: Bug 978785 - SV: Enable customization during first time to insert a SIM card
Bumping manifests a=b2g-bump