tree 01574ce474cf6ec79ab21a61136b0b8e44818199
parent a334ac20452d3264ebc6efa7a09a317800561ed8
author Andy Ross <andrew.j.ross@intel.com> 1551306570 -0800
committer Kumar Gala <kumar.gala@gmail.com> 1551380808 -0600

tests/kernel/sched/schedule_api: Restore spinning for timer alignment

Commit 0cc362f87371 ("tests/kernel: Simplify timer spinning") was
added to work around a qemu bug with dropped interrupts on x86_64.
But it turns out that the tick alignment that the original
implementation provided (fundamentally, it spins waiting on the timer
driver to report tick changes) was needed for correct operation on
nRF52.

The effectively revert that commit (and refactors all the spinning
into a single utility) and replaces it with a workaround targeted to
qemu on x86_64 only.  Fixes #11721

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>