This test was written with an outrageously long timeout of 25 seconds.
That blows right through the 32 bit cycle counter on qemu_cortex_m3[1]
and produces an essentially random delay instead of the desired
number, causing a hang with the new SysTick driver in tickless mode.
Push the number down so it doesn't overflow. The root cause, though,
is that k_busy_wait() can take arguments it can't handle. It ought to
have an outer loop or something so that it can spin for INT_MAX
milliseconds correctly.
[1] Which has a 12MHz clock rate. Many hardware implementations are
much faster still.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
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