Similar to other state machine traces and to make debug easier, add the
state name to nport sm trace printout.

Link: https://lore.kernel.org/r/20210914105539.6942-2-d.bogdanov@yadro.comReviewed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>