own dedicated serial port.
Added a feature to enable/disable RX_MSP.
Renamed feature SERIALRX to RX_SERIAL.
Renamed feature PARALLEL_PWM to RX_PARALLEL_PWM
Renamed PPM to RX_PPM.
Update serial configuration checking to better support Serial RX and
telemetry by verifiying serial port features and supported baud rates.
It's now possible to use a low-speed serial rx provider via softserial -
only problem is all the current serial rx providers are 100000/115200
baud. The code changes however open the door for using serial rx and
any capable serial port such as uart3-5 on the STM32F30x
It's also now possible to use GPS at low speeds on software serial
ports.
Dominic Clifton