Bugfix

Created by: silabs-oysteink

Trigger match during debug would deassert all special instructions bits (include dret_insn) while in ID stage. This would mask the dret and the core would not exit debug mode. Moved qualification with ctrl_fsm.debug_mode from controller to match logic inside cs_registers.

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