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

========

https://hg.mozilla.org/integration/gaia-central/rev/c3c5fc8e34a4
Author: Doug Sherk <github@sherk.me>
Desc: Revert "Bug 1037354 - Remove the obsolete references to the TelephonyCall.number and TelephonyCall.secondNumber fields. r=etienne"

This reverts commit d86aa916c3006d2cbb44576d7a2302b5b870c650.
Bumping manifests a=b2g-bump