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

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https://hg.mozilla.org/integration/gaia-central/rev/0f621a32f21b
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Merge pull request #20038 from eeejay/bug-1020656

Bug 1020656 - Hide contacts quickscroll and search when no contacts scre... r=francisco

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https://hg.mozilla.org/integration/gaia-central/rev/f9078cfc611b
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Bug 1020656 - Hide contacts quickscroll and search when no contacts screen is shown.
Bumping manifests a=b2g-bump