Updated the Nintendo Switch N64 controller mapping

This mapping matches the Linux kernel default mapping.

src/joystick/SDL_gamepad.c

@@ -1179,7 +1179,7 @@ static GamepadMapping_t *SDL_CreateMappingForHIDAPIGamepad(SDL_GUID guid)
             SDL_strlcat(mapping_string, "a:b0,b:b1,back:b4,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b9,lefttrigger:a4,rightshoulder:b10,righttrigger:a5,start:b6,x:b2,y:b3,hint:!SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1,", sizeof(mapping_string));
             break;
         case k_eSwitchDeviceInfoControllerType_N64:
-            SDL_strlcat(mapping_string, "a:b0,b:b1,back:b4,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b5,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b10,righttrigger:a5,start:b6,x:b2,y:b3,misc1:b11,", sizeof(mapping_string));
+            SDL_strlcat(mapping_string, "a:b0,b:b1,back:b3,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b5,leftshoulder:b9,lefttrigger:a4,leftx:a0,lefty:a1,misc1:b11,misc2:b4,rightshoulder:b10,righttrigger:b7,start:b6,x:a5,y:b2,", sizeof(mapping_string));
             break;
         case k_eSwitchDeviceInfoControllerType_SEGA_Genesis:
             SDL_strlcat(mapping_string, "a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b5,leftshoulder:b9,rightshoulder:b10,righttrigger:a5,start:b6,x:b2,y:b3,misc1:b11,", sizeof(mapping_string));