manifest: Update nRF hw models to latest and leave branch behind

Update the HW models module back to the main branch,
2570f4a697ce2d860ff39ec34afd91749bd66d3
leaving behind zephyr_2025_01_22
* 68df9ed Force build of cracen hal even if HAL is not 3.10

As the nordic HAL has been updated to be this version, we do not need
this hack in the HW models anymore to be able to build the CRACEN HW
models for the nrf54l15.

This update includes the following new commit in main:
* 2570f4a docs: Do not list the RTC as included for the 54L15

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