Need ability to disable USB, DATA, and RADIO ports

[nseidle]

Customer needs to disable interfaces that won't be used, for security reasons.

• RADIO port should have a 'Disabled' setting added that turns on UART 2 on ZED.
• DATA port can effectively be disabled by using the ADC/DAC setting in the Ports menu.
• CONFIG UBLOX port setting would need to be added to the system menu.

[nseidle]

Added in v4.0.