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

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https://hg.mozilla.org/integration/gaia-1_4/rev/3671e259d9ec
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 975343 - Show multiple phone numbers and iccids on dual sim devices"

This reverts commit 9afb0bfdbf0dbd595a4f8b1c8cea9ef70c05fa12.
Bumping manifests a=b2g-bump