staging: mt7621-pci: show N_FTS status using a loop

There are some printk's which can be replaced properly
using dev_* kernel functions. Use dev_info to show
N_FTS status for each port using a loop instead of duplicating
lines of code.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>