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

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https://hg.mozilla.org/integration/gaia-central/rev/1e1ffec09757
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #14253 from MBRSL/bug-943784-radio

Bug 943784 - [UITest][HW] remove 'var navigator = window.navigator' in r..., r=gasolin

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https://hg.mozilla.org/integration/gaia-central/rev/1aa27a60bb53
Author: Tom Jao <tjao@mozilla.com>
Desc: Bug 943784 - [UITest][HW] remove 'var navigator = window.navigator' in radio test