Controller reset fix for some games that need a particular reset routine (Samurai Shodown) (#221)

* Fix a bug where games such as Samurai Shodown would not accept player input due to missing controller reset after having played certain other games (such as Micro Machines).

Author: Natrox

rtl/gen_io.sv

@@ -341,8 +341,8 @@ always @(posedge RESET or posedge CLK) begin
 
 	if(RESET) begin
 		DTACK_N <= 1;
-		TH   <= 0;
-		JCNT <= 0;
+		TH   <= 1;
+		JCNT <= 3;
 	end
 	else if(CE) begin