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

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https://hg.mozilla.org/integration/gaia-central/rev/81eaacc98125
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Merge pull request #20579 from fcampo/operator-variant-jshint-1026034

Bug 1026034 - [OperatorVariant] Add jshint setup (r=cjc)

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https://hg.mozilla.org/integration/gaia-central/rev/0cf63bf3d544
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Bug 1026034 - [OperatorVariant] Add jshint setup
Bumping manifests a=b2g-bump