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

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https://hg.mozilla.org/integration/gaia-central/rev/7cbd02a36d17
Author: Wilson Page <wilsonpage@me.com>
Desc: Merge pull request #16495 from lissyx/bug974855

Bug 974855 - Strict or equal comparison when selecting picture size from pick activity

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https://hg.mozilla.org/integration/gaia-central/rev/93fcb11a7626
Author: Alexandre Lissy <lissyx+github@lissyx.dyndns.org>
Desc: Bug 974855 - Strict or equal comparison when selecting picture size from pick activity

Doing a strict comparison fails on some devices (Peak, Nexus) and
crashes the device or the Camera app when attaching to send a MMS.
Bumping manifests a=b2g-bump