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

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https://hg.mozilla.org/integration/gaia-central/rev/c8323e3e024a
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24231 from KevinGrandon/bug_1062048_part_2_day_view_test_wait_settings

Bug 1062048 - Wait for time format settings change

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https://hg.mozilla.org/integration/gaia-central/rev/d9d69c56aecd
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1062048 - Wait for time format settings change r=kgrandon
Bumping manifests a=b2g-bump