Added missing define for Switch 2

Author: DTetlow

Packages/com.unity.inputsystem/CHANGELOG.md

@@ -10,6 +10,7 @@ however, it has to be formatted properly to pass verification tests.
 
 ## [Unreleased] - yyyy-mm-dd
 - Fixed InputControl picker not updating correctly when the Input Actions Window was dirty. [ISXB-1221](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1221)
+- Added missing UNITY_SWITCH2 define in Gamepad.cs to fix button display names
 
 ### Changed
 - Expanded `RebindingUISample` to include a "game mode" state and a "menu state" to be more similar to a real game. Also added action-performed indicators (`InputActionIndicator`) illustrating when actions get triggered.

Packages/com.unity.inputsystem/InputSystem/Devices/Gamepad.cs

@@ -87,7 +87,7 @@ public struct GamepadState : IInputStateTypeInfo
         internal const string ButtonNorthShortDisplayName = "Triangle";
         internal const string ButtonWestShortDisplayName = "Square";
         internal const string ButtonEastShortDisplayName = "Circle";
-        #elif UNITY_SWITCH
+        #elif UNITY_SWITCH || UNITY_SWITCH2
         internal const string ButtonSouthShortDisplayName = "B";
         internal const string ButtonNorthShortDisplayName = "X";
         internal const string ButtonWestShortDisplayName = "Y";