REGTESTS: ssl: test the wait-for-handshake action and fc.timer.handshake

REGTESTS: ssl: test the wait-for-handshake action and fc.timer.handshake

Both were listed as reachable from one of the SSL tests, the action
because it only makes sense on a connection which performs a handshake,
and the timer because it stays at zero elsewhere. They join the test
which already reads the ssl_fc_* family on a TLSv1.2 connection. The
action is a no-op there since the handshake is over before the rules
run, no early data being involved, so it only checks that it is
accepted and does not disturb the exchange.