torture: Move stutter_wait() timeouts to hrtimers

In order to gain better race coverage, move the test start/stop
waits in stutter_wait() to torture_hrtimeout_jiffies().

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2023-06-26 16:52:35 -07:00
commit 10af43671e