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

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https://hg.mozilla.org/integration/gaia-2_0/rev/bd8c65b5a884
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #21319 from snowmantw/issue1024951-v2.0

Bug 1024951 - [NFC] Dialer screenshot shows on shrink UI when try to sha...

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https://hg.mozilla.org/integration/gaia-2_0/rev/c8d76faf5b28
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 1024951 - [NFC] Dialer screenshot shows on shrink UI when try to share contact if dialer is running on the background
Bumping manifests a=b2g-bump