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

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https://hg.mozilla.org/integration/gaia-central/rev/6dd81ae3ab60
Author: gitmai <mri@tid.es>
Desc: Merge pull request #21610 from mancas/bug1030280

Bug 1030280 - Move SIMCard dialog from injecting textContent to setting ...
r=gandalf

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https://hg.mozilla.org/integration/gaia-central/rev/cf85d67716ea
Author: Manuel Casas Barrado <mancas.91@gmail.com>
Desc: Bug 1030280 - Move SIMCard dialog from injecting textContent to setting data-l10n-id attributes.
Bumping manifests a=b2g-bump