Fix for CV32E40S issue #355 (rvfi_intr)
Created by: silabs-oysteink
Clearing in_trap[stage] in RVFI when a bubble is inserted into the stage. Also not propagating the in_trap[STAGE_WB] back to IF on debug entry if the rvfi_intr is set in the same cycle.
Fixes issue #355 on CV32E40S.
Signed-off-by: Oystein Knauserud Oystein.Knauserud@silabs.com