Add smoke tests for RB3

[lool]

• ci: lava: Run media-ctl -p in smoke tests
• ci: lava: RB3: Run usb-smoke-tests
• ci: lava: RB3: Run alsa-smoke tests
• ci: lava: RB3: Run wlan-smoke test

[lool]

I tested these by manually submitting a job to LAVA today with these new tests; BTW I did it by:

1. installing and setting up lavacli with an API token
2. looking at github actions to find the job number from the RB3 test of the latest daily
3. exporting the job YAML that was submitted lavacli jobs definition 84377 >84377.yaml
4. editing the yaml
5. submitting it with lavacli jobs submit rb3gen2-smoke.yaml

Results are here:
https://lava.infra.foundries.io/scheduler/job/84449

First, running "media-ctl -p" during the smoke tests on RB3 reports:

Failed to enumerate /dev/media0 (-2)
media-ctl fail

but the smoke-test still passes; I guess:

• there's something wrong with VPU on RB3Gen2 (Cc: @ldts)
• we shouldn't count on error codes for commands from the smoke test
• so we need another media-ctl test somewhere

Next, lsusb:

INFO: Running list-all-usb-devices test...
lsusb fail

properly detected as failing; not sure why it fails (wouldn't type-C port be there at least, even if Renesas firmware is missing?).

(I don't want to add a failing test though.)

Next, alsa:

+ cd ./automated/linux/alsa-smoke/
+ ./alsa-smoke.sh -s True -p /dev/snd
INFO: install_deps skipped
/usr/bin/aplay
aplay: device_list:279: no soundcards found...
playback_devices fail

properly detected as failing; not sure why (Cc: @Srinivas-Kandagatla)

Last, wlan smoke tests:

• properly runs all tests
• all passing on RB3
• detected as passing

Yay!

So I guess we should add wlan tests for RB3.

[ndechesne]

Some comments:

1. media-ctl is used for camera not VPU.
2. the 'smoke_test' is a test suite, and has a few tests inside it. The media-ctl test is reported as a failure in the test suite. I don't think it's correct to report that 'smoke_test' should fail.