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

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https://hg.mozilla.org/integration/gaia-central/rev/70afd6c46cef
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #26329 from albertopq/1090859-sim-pin-race2

Bug 1090859 - SIM PIN dialog race condition r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/5f6c7904ee06
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1090859 - SIM PIN dialog race condition
Bumping manifests a=b2g-bump