Bluetooth: Controller: Use HAL to modify renamed registers in nRF54

In some nRF54 devices, DATAWHITEIV was renamed to
DATAWHITE,
and the CRCCNF SKIADDR field was renamed OFFSET.
The nrf HAL hid this change internally,
so let's use it so we don't need to ifdef these
in the Bluetooth Controller HAL code.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>