ControllerApplet: Override player counts when SingleMode is set (#3571)

Ryujinx.HLE/HOS/Applets/Controller/ControllerApplet.cs

@@ -72,9 +72,16 @@ namespace Ryujinx.HLE.HOS.Applets
 
             int playerMin = argHeader.PlayerCountMin;
             int playerMax = argHeader.PlayerCountMax;
+            bool singleMode = argHeader.EnableSingleMode != 0;
 
             Logger.Stub?.PrintStub(LogClass.ServiceHid, $"ControllerApplet Arg {playerMin} {playerMax} {argHeader.EnableTakeOverConnection} {argHeader.EnableSingleMode}");
 
+            if (singleMode)
+            {
+                // Applications can set an arbitrary player range even with SingleMode, so clamp it
+                playerMin = playerMax = 1;
+            }
+
             int configuredCount = 0;
             PlayerIndex primaryIndex = PlayerIndex.Unknown;
             while (!_system.Device.Hid.Npads.Validate(playerMin, playerMax, (ControllerType)privateArg.NpadStyleSet, out configuredCount, out primaryIndex))