Alert minor is not set when there are a store bus fault NMI or a load bus fault NMI

Created by: silabs-krdosvik

Minor alert should be high when encountering these scenarios:

In rtl/cv32e40s_alert.sv, we set the alert minor signal high if exception_alert or lfsr_lockup is high.

However, the the alert minor signal will not go high if there are NMI bus faults, because the exception alert or lfsr lockup do not cover NMI faults:

Component

Component:RTL:

• https://github.com/openhwgroup/cv32e40s/blob/master/rtl/cv32e40s_alert.sv
• https://github.com/openhwgroup/cv32e40s/blob/master/rtl/cv32e40s_controller_fsm.sv