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

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https://hg.mozilla.org/integration/gaia-central/rev/9aa4f14af38d
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #15286 from KevinGrandon/bug_959451_duplicate_input_parser

Bug 959451 - Resolve duplicate files: input_parser.js r=gaye,rudyl

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https://hg.mozilla.org/integration/gaia-central/rev/ce29efed5bc3
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 959451 - Resolve duplicate files: input_parser.js