Pinmux should no longer happen in board C files since the addition of
the pinctrl API, so remove such guidelines from the board porting
guidelines.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
At some recent point, directory <zephyr-root>/include was moved to
<zephyr-root>/include/zephyr. However, links from documentation to
Zephyr source on Github were not updated. Update them now.
Signed-off-by: Aleksandar Markovic <aleksandar.markovic.sa@gmail.com>