Add amd-pstate test trigger in kselftest, it will load/unload
amd-pstate-ut module to test some cases etc.
Signed-off-by: NMeng Li <li.meng@amd.com>
Acked-by: NHuang Rui <ray.huang@amd.com>
Reviewed-by: NShuah Khan <skhan@linuxfoundation.org>
Signed-off-by: NShuah Khan <skhan@linuxfoundation.org>