The TEMP sensor is not present in configurations like
nrf5340dk_nrf5340_cpuappns.
Signed-off-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@nordicsemi.no>
Use DEVICE_DT_GET_ANY instead of hard-coding a device label property.
As far as I can tell from in-tree drivers, "TEMP_0" is nRF specific
and refers to nodes with compatible "nordic,nrf-temp", so use that and
clean up the driver Kconfig while we're here.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>