stm32f405_spi: Update SPI device

This now includes unimplemented messages and more accurate
status updates

Signed-off-by: Alistair Francis <alistair23@gmail.com>
netduinoplus2: Update the way the nRF24L01+ device is attached

Signed-off-by: Alistair Francis <alistair23@gmail.com>
nRF24L01+: Update the device to match the datasheet

Signed-off-by: Alistair Francis <alistair23@gmail.com>