Input: export 'uniq' in /proc/bus/input/devices

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

drivers/input/input.c

@@ -439,6 +439,7 @@ static int input_devices_seq_show(struct seq_file *seq, void *v)
 	seq_printf(seq, "N: Name=\"%s\"\n", dev->name ? dev->name : "");
 	seq_printf(seq, "P: Phys=%s\n", dev->phys ? dev->phys : "");
 	seq_printf(seq, "S: Sysfs=%s\n", path ? path : "");
+	seq_printf(seq, "U: Uniq=%s\n", dev->uniq ? dev->uniq : "");
 	seq_printf(seq, "H: Handlers=");
 
 	list_for_each_entry(handle, &dev->h_list, d_node)