Running kunit tests on platform devices

Hi. I implemented a test suite that checks a platform driver, that's the only way I can test interrupts behavior in the code. Because it's a platform, I can't use kunit_test_suite(), so I call __kunit_test_suites_init() as part of the platform driver probe function.

This works fine but has the following problems. "TAP version 14" string is not printed and it's impossible to parse the results using the script. In addition, the suite is not displayed in /sys/kernel/debug/kunit.

It would be my pleasure to provide a patch that fixes this, I just wanted to make sure that my testing strategy makes sense.

Thanks, Ramon