manifest: Update nrf hw models to latest

* Update the HW models module to
f7842d717c73aaeb0354f9e70e6d5ad275106f52

Including the following:
* f7842d7 INT CNTLR: Bugfix for more than 32 interrupts
* 903f643 MUTEX: Add nrf5340 MUTEX peripheral model
* e84fca4 IPC: Add nrf5340 IPC peripheral model
* dacbaa0 EGU: Minor: Use new irq ctrl API
* 9a4e0ba Templates: Add intenset/clr template for multi instance per
* c77ba72 nrf_dppi_hack: Add extra nrf like APIs meant for simulation
* 99ae791 RTC: Fix subscribe prototypes and calls from HAL
* ca554e9 FICR (53): Fix links to documentation
* d3758a2 docs: Fix links to HW sources
* 693a36c doc: Implementation status: Change checkmarks

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