HID: usbhid: make usbhid_set_leds() static

usbhid_set_leds() is only used inside of usbhid/hid-core.c so no need to
export it.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 9941828..5482bf4 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -857,7 +857,7 @@
 	return -1;
 }
 
-void usbhid_set_leds(struct hid_device *hid)
+static void usbhid_set_leds(struct hid_device *hid)
 {
 	struct hid_field *field;
 	int offset;
@@ -867,7 +867,6 @@
 		usbhid_submit_report(hid, field->report, USB_DIR_OUT);
 	}
 }
-EXPORT_SYMBOL_GPL(usbhid_set_leds);
 
 /*
  * Traverse the supplied list of reports and find the longest