manifest: Update nrf hw models to latest

* Update the HW models module to
3925b7030736f25f45ceedc3621219125a2d4685

Including the following:
* 3925b70: Add new API to convert real peripheral addr to simulated one
* 319e3eb: nhw_convert_periph_base_addr: Fix include for nrf5340

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