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

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https://hg.mozilla.org/integration/gaia-central/rev/c4522e394d12
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #20605 from jmcanterafonseca/fix_sim_dups_final

Bug 1026369 - In import, contacts are duplicated.

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https://hg.mozilla.org/integration/gaia-central/rev/46e3882cdea1
Author: José Manuel Cantera <jmcanterafonseca@gmail.com>
Desc: Bug 1026369 - In import, contacts are duplicated.
Bumping manifests a=b2g-bump