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

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https://hg.mozilla.org/integration/gaia-central/rev/e41e7c47d6f9
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Merge pull request #19927 from gtorodelvalle/emergencycall-bug-993951-visual-refresh

Bug 993951 - [Dialer] Emergency call screen visual refresh 2.0 r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/32472fdbc229
Author: German Toro del Valle <gtorodelvalle@gmail.com>
Desc: Bug 993951 - [Dialer] Emergency call screen visual refresh 2.0
Bumping manifests a=b2g-bump