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

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https://hg.mozilla.org/integration/gaia-central/rev/eeba210e2f8c
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #18293 from TheoChevalier/995509-eu-default-layout

Bug 995509 - [l10n][eu] Use Spanish and French layouts by default for eu
r=rudylu.

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https://hg.mozilla.org/integration/gaia-central/rev/ae3e9887e48c
Author: TheoChevalier <theo.chevalier11@gmail.com>
Desc: Bug 995509 - [l10n][eu] Use Spanish and French layouts by default for eu
Bumping manifests a=b2g-bump