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

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https://hg.mozilla.org/integration/gaia-central/rev/e3455d0d33b1
Author: Hubert Figuière <hub@figuiere.net>
Desc: Merge pull request #19495 from hfiguiere/bug846871

Bug 1014821 - Send the call-log-ready perf event even if the call log is empty. r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/fa3f8eb62ea2
Author: Hubert Figuière <hub@figuiere.net>
Desc: Bug 1014821 - Send the call-log-ready perf event even if the call log is empty.
Bumping manifests a=b2g-bump