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

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https://hg.mozilla.org/integration/gaia-central/rev/ad1160c3a8dd
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #21477 from timdream/settings-disable-lock-passcode

Bug 1034183 - Disable lock screen also disables pass code lock, r=arthurcc

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https://hg.mozilla.org/integration/gaia-central/rev/3369cf651b17
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Bug 1034183 - Disable lock screen also disables pass code lock
Bumping manifests a=b2g-bump