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

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https://hg.mozilla.org/integration/gaia-central/rev/d16739f6d457
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #14201 from timdream/keyboard-disable-install

Bug 944295 - Uninstall the input app when the feature is not enabled, r=gchen

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https://hg.mozilla.org/integration/gaia-central/rev/13757b160b7c
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Bug 944295 - Uninstall the input app when the feature is not enabled