Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/903f4101963a
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #26106 from timdream/keyboard-settings-panel

Bug 1098124 - Rearrange keyboard settings page scripts, r=mnjul, rudyl

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https://hg.mozilla.org/integration/gaia-central/rev/fe0d905e5a29
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Bug 1098124 - Follow up typo fix

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https://hg.mozilla.org/integration/gaia-central/rev/6ca15cd406ce
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Bug 1098124 - Rearrange keyboard settings page scripts
Bumping manifests a=b2g-bump