dts: bindings: i2c: Add bindings for i2c_nrf5
dts: bindings: i2c: Add bindings for i2c_nrf5

A device tree bindings description is added for nRF5 I2C controller.

Signed-off-by: Aapo Vienamo <dca00f4679e19d04e3a27465e39017ecd35d4f5a@iki.fi>

kraj/zephyr,punitvara/zephyr,ldts/zephyr,mbolivar/zephyr,ldts/zephyr,finikorg/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,zephyriot/zephyr,nashif/zephyr,galak/zephyr,explora26/zephyr,ldts/zephyr,zephyriot/zephyr,finikorg/zephyr,GiulianoFranchetto/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,explora26/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,explora26/zephyr,nashif/zephyr,punitvara/zephyr,kraj/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,punitvara/zephyr,mbolivar/zephyr,Vudentz/zephyr,Vudentz/zephyr,zephyriot/zephyr,mbolivar/zephyr,ldts/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,Vudentz/zephyr,nashif/zephyr,finikorg/zephyr,galak/zephyr,Vudentz/zephyr,nashif/zephyr,ldts/zephyr,kraj/zephyr,explora26/zephyr,finikorg/zephyr,Vudentz/zephyr,galak/zephyr,mbolivar/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,zephyriot/zephyr,zephyriot/zephyr,punitvara/zephyr,kraj/zephyr,galak/zephyr,finikorg/zephyr