stm32f405_timer: Add PWM support to TIME2 to 5

Signed-off-by: Alistair Francis <alistair23@gmail.com>
netduinoplus2: Tidy up the timer naming

Signed-off-by: Alistair Francis <alistair23@gmail.com>
stm32f405_spi: Add SPI for the stm32f405 SoC

Signed-off-by: Alistair Francis <alistair23@gmail.com>
nrf24l01plus: Add the SPI Slave

Signed-off-by: Alistair Francis <alistair23@gmail.com>
stm32f405_exti: Turn off debugging statements

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