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

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https://hg.mozilla.org/integration/gaia-central/rev/fac082b339cb
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #16557 from crdlc/bug-975834

Bug 975834 - homescreen bookmarks do not work for URLs ending in a file

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https://hg.mozilla.org/integration/gaia-central/rev/094a3b27f4a9
Author: crdlc <crdlc@tid.es>
Desc: Bug 975834 - homescreen bookmarks do not work for URLs ending in a file
Bumping manifests a=b2g-bump