Too strong filter for WWN

[Bloodoff]

In file utils.py deefined regex for validate WWNs
'naa': lambda wwn: re.match("naa.[125][0-9a-fA-F]{15}$", wwn)

I have quad port QLE2564 adapter with portnames:
systool -c fc_host -v | grep port_name
port_name = "0x15b0024ffaa536f"
port_name = "0x115b0024ffaa536f"
port_name = "0x215b0024ffaa536f"
port_name = "0x315b0024ffaa536f"

Two of this list can't pass regexp, and can not be used as FC target