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

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https://hg.mozilla.org/integration/gaia-central/rev/fa19720b09b1
Author: Dave Huseby <dhuseby@mozilla.com>
Desc: Merge pull request #25460 from dhuseby/Bug_1088128

Bug 1088128 -- Add support for getCurrentPosition in Geoloc dev app

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https://hg.mozilla.org/integration/gaia-central/rev/07396d862e68
Author: Dave Huseby <dhuseby@mozilla.com>
Desc: Bug 1088128 -- Add support for getCurrentPosition in Geoloc dev app
Bumping manifests a=b2g-bump