HW layer for the Nucleo board, it only work with old BLE_API

Dependents:   Hello_BLE F446RE-BLE

Fork of X_NUCLEO_IDB0XA1 by ST

Revision:
93:728699ac5613
Parent:
92:709d44dc869a
Parent:
86:81b17a629630
Child:
95:e1f7ce04e71b