Author: Alan Carvalho de Assis <acassis@gmail.com>
Fix long line comments in the header files
Author: Mateusz Szafoni <raiden00pl@users.noreply.github.com>
* arch/arm/src/nrf52: add GPIOTE and SAADC registers definitions
* arch/arm/src/nrf52: update some registers definitions
* arch/arm/src/nrf52: add basic I2C support
* arch/arm/src/nrf52: add function to unconfigure GPIO
* arch/arm/src/nrf52/nrf52_lowputc: add missing FAR