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

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https://hg.mozilla.org/integration/gaia-central/rev/a0f8e9466659
Author: gitmai <mri@tid.es>
Desc: Merge pull request #22662 from gitmai/bug-1020848-align-balance-text

Bug 1020848 - When phone hasn't coverage and balance is below a determin...
r=salva

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https://hg.mozilla.org/integration/gaia-central/rev/82547e5d0674
Author: mai <mri@tid.es>
Desc: Bug 1020848 - When phone hasn't coverage and balance is below a determinate amount, texts aren't correctly aligned
Bumping manifests a=b2g-bump