Set port['ifTrunk'] = 'dot1Q' even if there is a untagged vlan

For some ports, we run them with both a dot1qPvid and tagged vlans on the same port.
eg dot1qPvid = 1 and allows vlan 10,11,12 to on that port.

Current observium code in includes/polling/ports.inc.php port['ifTrunk'] = 'dot1Q' only gets set if there is no untagged vlan for this port.

The ui looks about right if i manually set ifTrunk to dot1Q, but it probably needs to look at both dot1qVlanStaticUntaggedPorts and and dot1qVlanStaticEgressPorts.