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

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https://hg.mozilla.org/integration/gaia-central/rev/d7d92199ea7e
Author: pacorampas <b.frv@tid.es>
Desc: Merge pull request #22165 from pacorampas/1043904

Bug 1043904 - [Dialer][Call screen] There is a empty line at bottom of background image r=rik

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https://hg.mozilla.org/integration/gaia-central/rev/45c5dc688d63
Author: Paco Rampas <pacorampas@gmail.com>
Desc: Bug 1043904 - [Dialer][Call screen] There is a empty line at bottom of background image
Bumping manifests a=b2g-bump