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

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https://hg.mozilla.org/integration/gaia-2_1/rev/45de19bd5d78
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #25449 from gerv/v2.1

Bug 1086285 - update licensing information for v2.1. r=arthurcc

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https://hg.mozilla.org/integration/gaia-2_1/rev/815fe2d53ec5
Author: Gervase Markham <gerv@gerv.net>
Desc: Bug 1086285 - update licensing information for v2.1.
Bumping manifests a=b2g-bump