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

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https://hg.mozilla.org/integration/gaia-central/rev/9eab6f8c82d6
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #17222 from rsajdok/bug#948857b

Bug 948857: email does not display correctly when contact has no name. r=jrburke

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https://hg.mozilla.org/integration/gaia-central/rev/4ee3ec27cf87
Author: Robert Sajdok <robert.sajdok@gmail.com>
Desc: Bug 948857: email does not display correctly when contact has no name.
Bumping manifests a=b2g-bump