Update fsm_detect bugfix

Signed-off-by: Clifford Wolf <clifford@clifford.at>

passes/fsm/fsm_detect.cc

@@ -173,6 +173,7 @@ static void detect_fsm(RTLIL::Wire *wire)
 
 			if (set_output || clr_output) {
 				for (auto &port_it : cell->connections())
+					if (cell->input(port_it.first))
 						for (auto bit : assign_map(port_it.second))
 							if (bit.wire != nullptr && !sig_q_bits.count(bit))
 								goto next_cellport;