Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_0/rev/07b976c9f309
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Revert "Bug 1070825 - Remove the check of not dialing the same number twice"

This reverts commit 5082fc56ef80352b7bc1be6b934286d815f069d8.
Bumping manifests a=b2g-bump