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

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https://hg.mozilla.org/integration/gaia-central/rev/5ef8d3325421
Author: Carsten Book <tomcat@mozilla.com>
Desc: Merge pull request #25154 from kumarrishav/Bug-1018111

Bug 1018111 - [Flame][v1.4][MMS] Edit text messages, add video no size limit tips. r=schung

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https://hg.mozilla.org/integration/gaia-central/rev/657a8ccf694e
Author: kumarrishav <rishav006@gmail.com>
Desc: Bug 1018111 - [Flame][v1.4][MMS] Edit text messages, add video no size limit tips. r=schung
Bumping manifests a=b2g-bump