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

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https://hg.mozilla.org/integration/gaia-central/rev/11a98560b96d
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #20256 from DouglasSherk/1019546-dialer-contacts-overlap

Bug 1019546 - [Visual Refresh][Dialer] Fix dial pad and contacts overlapping when being switched between. r=rik

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https://hg.mozilla.org/integration/gaia-central/rev/02e8d351063b
Author: DouglasSherk <github@sherk.me>
Desc: Bug 1019546 - [Visual Refresh][Dialer] Fix dial pad and contacts overlapping when being switched between. r=rik
Bumping manifests a=b2g-bump