Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/e204b914c3dd
Author: russnicoletti <rnicoletti@mozilla.com>
Desc: Merge pull request #18231 from vsireesha246/Bug_951025_Video_FF/Rwd

[Video]Bug 951025 - [Video]Fast forward/Rewind option in Video app r=john hu,russn

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https://hg.mozilla.org/integration/gaia-central/rev/106de39e98fc
Author: varada.sireesha <varada.sireesha@lge.com>
Desc: Bug 951025 - [Video]Fast forward/Rewind option in Video app

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https://hg.mozilla.org/integration/gaia-central/rev/ca02f515c336
Author: Hubert Figuière <hub@figuiere.net>
Desc: Merge pull request #19738 from hfiguiere/bug838657-2

Bug 838657 - Implement a console reporter. r=julienw,eli

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https://hg.mozilla.org/integration/gaia-central/rev/57c91ade520f
Author: Hubert Figuière <hub@figuiere.net>
Desc: Bug 838657 - Implement a console reporter. r=julienw,eli

Rebased from https://github.com/mozilla-b2g/gaia/pull/11870 by @caiolima
Bumping manifests a=b2g-bump