HID: nvidia-shield: Update Thunderstrike LED instance name to use id

Previously would let led_classdev handle renaming when name collision
occurred. Now that an ID allocator is used to uniquely identify multiple
Thunderstrike controllers, generate unique led device names.
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-nvidia-shield.c

@@ -798,7 +798,8 @@ static inline int thunderstrike_led_create(struct thunderstrike *ts)
 {
 	struct led_classdev *led = &ts->led_dev;
 
-	led->name = "thunderstrike:blue:led";
+	led->name = devm_kasprintf(&ts->base.hdev->dev, GFP_KERNEL,
+				   "thunderstrike%d:blue:led", ts->id);
 	led->max_brightness = 1;
 	led->flags = LED_CORE_SUSPENDRESUME;
 	led->brightness_get = &thunderstrike_led_get_brightness;