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

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https://hg.mozilla.org/integration/gaia-2_1/rev/dea3b857d440
Author: Sherman Chen <shamenchens@users.noreply.github.com>
Desc: Merge pull request #24650 from shamenchens/Bug1074166-L10NBasedir

Bug 1074166 - Fix device type l10n missing issue, r=RickyChien

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https://hg.mozilla.org/integration/gaia-2_1/rev/c84e2838f5e9
Author: Sherman Chen <shamen.chens@gmail.com>
Desc: Bug 1074166 - Fix device type l10n missing issue
Bumping manifests a=b2g-bump