Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_0/rev/13b131d04a89
Author: Zac <zcampbell@mozilla.com>
Desc: Revert "Bug 1042032 - Disable test_gallery_view until dwong fixes the phones"

This reverts commit 24434c2756ed3cb2a3002335451da283c305b0d4.
Bumping manifests a=b2g-bump