The test for the k_uptime_delta utilities was calling it in a loop and
waiting for the uptime to advance. But the code was specifically
wanting it to advance 5ms or more at one go, which clearly isn't going
to work for a tick rate above 200 Hz.
The weird thing is that the test knew this and even commented about
the limitation. Which seems silly: it's perfectly fine for the clock
to advance just a single millisecond. That's correct behavior too.
Let's test for that, and it will work everywhere.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
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