case-lib: ignore error while enabling/disabling pulseaudio

[fredoh9]

Current SOF CI is not use pulseaudio.

Signed-off-by: Fred Oh fred.oh@linux.intel.com

Found consistent error while restoring pulseaudio in Ubuntu 20.04 devices.

2020-06-25 23:55:26 UTC [REMOTE_INFO] checking for general errors after kmod insert with sof-kernel-log-check tool
2020-06-25 23:55:26 UTC [REMOTE_INFO] checking if firmware is loaded successfully
2020-06-25 23:55:26 UTC [REMOTE_INFO] ==== firmware boot complete: 2 of 2 ====
2020-06-25 23:55:27 UTC [REMOTE_INFO] Restoring pulseaudio
usage: sudo -h | -K | -k | -V
usage: sudo -v [-AknS] [-g group] [-h host] [-p prompt] [-u user]
usage: sudo -l [-AknS] [-g group] [-h host] [-p prompt] [-U user] [-u user]
            [command]
usage: sudo [-AbEHknPS] [-r role] [-t type] [-C num] [-g group] [-h host] [-p
            prompt] [-T timeout] [-u user] [VAR=value] [-i|-s] []
usage: sudo -e [-AknS] [-r role] [-t type] [-C num] [-g group] [-h host] [-p
            prompt] [-T timeout] [-u user] file ...
2020-06-25 23:55:37 UTC [REMOTE_INFO] Time out. Pulseaudio not restored in 10 seconds
2020-06-25 23:55:37 UTC [REMOTE_INFO] Test Result: FAIL!

[marc-hb]

pulseaudio can have significant side effects so we cannot run tests in an "unknown pulseaudio state".

This looks like a simple sudo syntax error, let's just investigate and fix it.

Are these errors observed in CI too? if not why not?

Did you also observe errors while disabling it? If not why ignore errors we haven't seen yet?

[fredoh9]

The proper fix for sudo is posted,
#266