s/timout/timeout/

tests/dev/sysmon: Query bits of data, not bits of entropy.

Fixes PR kern/47661.

These test cases should now succeed, after fixing rump kernel to handle
modules that establish their sysctls via SYSCTL_SETUP()

Mark the swsensor tests "expected failure" since the rump world doesn't
seem to handle the SYSCTL_SETUP stuff. PR kern/55088

Include better diagnostic info when a required key value cannot be retrieved from envstat -x

Double the timeout (to 120s) for slower machines

The sh api calls it atf_expect_fail, while the c api calls it
atf_tc_expect_fail - this is shell, so fix the names accordingly.
XXX Why do they differ?

These tests are flaky so mark them as expected failures... when they fail.
See PR kern/47661.

Add new test cases for entropy-providing sensors

Now that 'rump_server -l stuff' works, use a less heavyweight rump_server
for this test. Thanks, pooka!

Now that we update the callout timer as soon as it is updated, we no longer
need to have an extended wait for the first powerd event to occur. Revert
that portion of previous commit.

Various cleanup (most from pooka@)
- Does not require root access on the host, only in the rump
environment (which it gets by default)
- Manual clean-up of powerd process and rump-server socket

Various cleanup (most from pooka@)
- Does not require root access on the host, only in the rump
environment (which it gets by default)
- Manual clean-up of powerd process and rump-server socket is
not necessary - happens automatically
- Don't use a global, absolute path for the rump-server socket

For alarm_sensor, make sure events are still delivered after 'envstat -S'
(the cur_value was deliberately left at an alarm level and should not be
affected by the reset).

No longer need to skip the alarm_sensor and limit_sensor tests, since
pooka fixed passing of proplist to built-in modules.

Increase wait time for first powerd event report. (This should not be
needed, so there's probably a bug somewhere, but the increased timeout
lets us validate the rest of the sensor functionality.)

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Add a rump-based set of tests for sysmon_envsys(8) + powerd(8) + swsensor(4)