The board name for the nRF52 DK, so far known as nrf52_pca10040, is
renamed to nrf52dk_nrf52832. Its documentation and all references
to its name in the tree are updated accordingly. Overlay and
configuration files specific to this board are also renamed, to
match the new board name.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Replace Kconfig configuration data with devicetree bindings using
(ADC) io channels. Rework the sample to document expectations about
the relationship between the reference voltage and the divider input
voltage, and update the sensor configuration to support Nordic SAADC.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>