HID: lg-g15: explicitly include linux/leds.h

Instead of relying on an accidental, transitive inclusion of linux/leds.h
use it directly.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230215-power_supply-leds-hid-v1-2-35b6f1dcee8a@weissschuh.netSigned-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

drivers/hid/hid-lg-g15.c

@@ -7,6 +7,7 @@
 
 #include <linux/device.h>
 #include <linux/hid.h>
+#include <linux/leds.h>
 #include <linux/module.h>
 #include <linux/random.h>
 #include <linux/sched.h>