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

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https://hg.mozilla.org/integration/gaia-central/rev/3e44ef6e1c5a
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25711 from KevinGrandon/bug_1091936_update_hotspot_strings

Bug 1091936 - Update hotspot dialog strings

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https://hg.mozilla.org/integration/gaia-central/rev/47665d1ee1cf
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1091936 - Update hotspot dialog strings r=flod r=aryx
Bumping manifests a=b2g-bump