chao.an e781787cb9 sched/critmonitor: remove the assertion if counter == 0
Perf timer interface generally uses the hardware cycle counter
provided by the arch chip directly(such as DWT_CYCCNT(cortex-m)),
CYCCNT is a free running counter and counting upwards.
It wraps around to 0 on overflow.

Signed-off-by: chao.an <anchao@xiaomi.com>
2022-01-25 20:24:58 +08:00
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