wayland: use more specific input codes header

Wayland’s wl_pointer interface describes the button event’s argument as
being taken from linux/input-event-codes.h, so there is no need to
include the more generic linux/input.h.

video/out/wayland_common.c

@@ -19,7 +19,7 @@
 #include <limits.h>
 #include <poll.h>
 #include <unistd.h>
-#include <linux/input.h>
+#include <linux/input-event-codes.h>
 #include <time.h>
 #include "common/msg.h"
 #include "options/m_config.h"