Input: HLE: NpadManager: ignore handheld inputs when docked

fixes ghost inputs in games like pokemon when handheld controller is set in docked mode.

it is now possible to keep handheld set and switch between modes with no issue.

src/Ryujinx.Input/HLE/NpadManager.cs

@@ -221,6 +221,10 @@ namespace Ryujinx.Input.HLE
 
                 foreach (InputConfig inputConfig in _inputConfig)
                 {
+                    // ignore handheld inputs if docked
+                    if (_device.System.State.DockedMode && inputConfig.PlayerIndex == Common.Configuration.Hid.PlayerIndex.Handheld)
+                        continue;
+
                     GamepadInput inputState = default;
                     (SixAxisInput, SixAxisInput) motionState = default;