dts: nordic: adding FICR binding file and macro define

Adding a binding .yaml file for Nordic FICR and the
corresponding macro definition for NRF_FICR in
nrfx_config_nrf9160.h header file.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2 files changed