timers, sched_clock: Update timeout for clock wrap
The scheduler clock framework may not use the correct timeout for the clock wrap. This happens when a new clock driver calls sched_clock_register() after the kernel called sched_clock_postinit(). In this case the clock wrap timeout is too long thus sched_clock_poll() is called too late and the clock already wrapped. On my ARM system the scheduler was no longer scheduling any other task than the idle task because the sched_clock() wrapped. Signed-off-by: NDavid Engraf <david.engraf@sysgo.com> Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
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