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

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https://hg.mozilla.org/integration/gaia-central/rev/69b4d72a6b80
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #24926 from gasolin/issue-1075200

Bug 1075200 - [Settings] Unable to set AM/PM time after change time form..., r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/98584c04c0c4
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1075200 - [Settings] Unable to set AM/PM time after change time format
Bumping manifests a=b2g-bump