CSR stall on CLIC pointers writing to mcause.minhv

Created by: silabs-oysteink

Including CLIC pointers in CSR hazard detection. Pointers with no exceptions clear mcause.minhv from WB. Any instructions reading mcause should be stalled in ID for this case.

Implemented in the same was as the existing CSR stalls, not checking for actual csr address read vs address written. There is a todo in the code to make this stall more specific in the future.

Signed-off-by: Oystein Knauserud Oystein.Knauserud@silabs.com