Missing baudrates and U-Blox on serial port detection

[Javier Viguera]

Hi all,

Attached a couple of patches to address two minor issues:

1. Missing baudrates when you configure MM via ID_MM_TTY_BAUDRATE udev tag.
2. Added the vendor string to the U-Blox plugin so the correct plugin is
   used for a U-Blox modem over serial/UART.

Please consider applying them to master.

Thanks

--
Javier Viguera
Software Engineer

Digi International® Spain S.A.U.