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

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https://hg.mozilla.org/integration/gaia-central/rev/16994e0b8556
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #23922 from albertopq/1063601-not-ambient-tray

Bug 1063601 - Don't show indicator with tray open r=mhenretty

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https://hg.mozilla.org/integration/gaia-central/rev/0d8902d6db14
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1063601 - Don't show indicator with tray open
Bumping manifests a=b2g-bump