Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/17cc5a9dd8e9
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 962612 - Follow-up, fix month name typo r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/04bd3265a15c
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #23528 from DouglasSherk/1038701-dialer-ice-contacts2

Bug 1038701 - [US] Support for ICE Contacts in Lockscreen/Emergency call. r=Rik

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https://hg.mozilla.org/integration/gaia-central/rev/312cfe7e6ea6
Author: German Toro del Valle <gtorodelvalle@gmail.com>
Desc: Bug 1038701 - [US] Support for ICE Contacts in Lockscreen/Emergency call. r=Rik
Bumping manifests a=b2g-bump