Extend HW ID page to cover new MAVn_DEVID parameters

[rmackay9]

ArduPilot flight code PR ArduPilot/ardupilot#29762 adds new MAVn_DEVID parameters to allow users to more easily figure out which MAVn_xxx parameters controls which serial port. It would be nice if the "HW ID" page's DevType showed a human readable string for the new parameter.

The mapping from DevID to DevType is in the new parameter's description (see Values) but here it is again in any case:

    // @Values: 0:Unknown
    // @Values: 6:USB0
    // @Values: 14:SERIAL1
    // @Values: 22:SERIAL2
    // @Values: 30:SERIAL3
    // @Values: 38:SERIAL4
    // @Values: 46:SERIAL5
    // @Values: 54:SERIAL6
    // @Values: 62:SERIAL7
    // @Values: 70:SERIAL8
    // @Values: 78:SERIAL9
    // @Values: 174:NET_P1
    // @Values: 182:NET_P2
    // @Values: 190:NET_P3
    // @Values: 198:NET_P4
    // @Values: 334:CAN_D1_UC_S1
    // @Values: 414:CAN_D2_UC_S1
    // @Values: 494:SCR_SDEV1
    // @Values: 502:SCR_SDEV2

Here is the equivalent MAVProxy PR ArduPilot/MAVProxy#1736