net: ethernet: ti: cpts: use dev_yy() api for logs

Use dev_yy() API instead of pr_yy() for log outputs.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>