Fix NOLINT line for readability-convert-member-functions-to-static

Reverts: acd74cc0e3

Source/controls/devices/joystick.cpp

@@ -178,7 +178,8 @@ int Joystick::ToSdlJoyButton(ControllerButton button)
 	}
 }
 
-bool Joystick::IsHatButtonPressed(ControllerButton button)
+// NOLINTNEXTLINE(readability-convert-member-functions-to-static): Not static if joystick mappings are defined.
+bool Joystick::IsHatButtonPressed(ControllerButton button) const
 {
 	switch (button) {
 #if defined(JOY_HAT_DPAD_UP_HAT) && defined(JOY_HAT_DPAD_UP)

Source/controls/devices/joystick.h

@@ -37,8 +37,7 @@ public:
 private:
 	static int ToSdlJoyButton(ControllerButton button);
 
-	// NOLINTNEXTLINE(readability-convert-member-functions-to-static): Not static if joystick mappings are defined.
-	static bool IsHatButtonPressed(ControllerButton button);
+	bool IsHatButtonPressed(ControllerButton button) const;
 
 	SDL_Joystick *sdl_joystick_ = NULL;
 	SDL_JoystickID instance_id_ = -1;