types/meson.build: Add compile args for libinput to lib_wlr_types (#1636)

* Add compile args for libinput to lib_wlr_types

Fixes the build on openSUSE Tumbleweed

* Remove libinput include from wlr_tablet_v2.c

+ libinput isn't used in the file
+ Also remove libinput dependency from types/meson.build

types/tablet_v2/wlr_tablet_v2.c

@@ -3,7 +3,6 @@
 #endif
 
 #include <assert.h>
-#include <libinput.h>
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server.h>