Change implementation of timeout to one that is using us_ticker hal.
Timeout is now configurable by I2C_TIMEOUT_VALUE_US macro and this
value will be imported if will be defined externaly.
Use serial-box of Nordic nRF5 SDK to share resource between
SPI and I2C.
SPI is allocated from highest hw instance number resource in order
to allocate as many I2C instances as possible.
HAL driver: Add changes from needad for nrf52840 support
us_ticker, spi, sleep, serial, pwmout, pinmap, object, i2c, gpio, analogin
Add compatibility patches for:
- SoftDevice headers renamed (redirec by a few h files)
- sdk configuration (redirect by sdk_config.h files)
- renaming of func in softdevice handler module