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

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https://hg.mozilla.org/integration/gaia-central/rev/f5b00caca0ea
Author: Ed Morley <emorley@mozilla.com>
Desc: Revert "Bug 973443 - [settings] refactor Display panel with AMD pattern" for intermittent test failures

This reverts commit e1d028cb91ad1f05ddb6fcfff411369e21074280.
Bumping manifests a=b2g-bump