We don't need to define FLASHPAGE_SIZE and FLASHPAGE_NUMOF ourself if
the BPROT peripheral is present.
Now why nrf52840 doesn't have it, I don't know, but for nrf52832 and
nrf23811 the values in BPROT_REGIONS_SIZE and BPROT_REGIONS_NUM match
the values manually provided here before.
This function is supposed to be used for putting the CPU into
sleep mode for short amounts of time (e.g. in typical polling
loops used in periph drivers).
- added vendor header files for nrf52840
- added config for nrf52840
- added additional isr vectors for the nrf52840
- enabled port 1 in GPIO driver
- adapted periph drivers to cope with GPIO driver changes
- adapted the GPIO config of the I2C driver for the nrf51