[CMAKE] Make the functional test run with upgrade activated
Summary:
This adds a new target for running the functional tests with the phonon
activation time in the past. This target is also run by the magic target
check-upgrade-activated.
Depends on D4800.
Test Plan:
ninja check-upgrade-activated
Check it runs the functional tests --with-phononactivation.
Reviewers: #bitcoin_abc, deadalnix
Reviewed By: #bitcoin_abc, deadalnix
Differential Revision: https://reviews.bitcoinabc.org/D4783