vulkan/util: meson build - add wayland client include

Without this the build breaks with:

In file included from ../src/vulkan/util/vk_util.h:32,
                 from ../src/vulkan/util/vk_util.c:28:
../include/vulkan/vulkan.h:51:10: fatal error: wayland-client.h: No such file or
directory
 #include <wayland-client.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.

The above misses the include directory for wayland:
   -I/usr/include/wayland

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
(cherry picked from commit 29179f58)
[Emil: resolve trivial conflicts]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

Conflicts:
	src/vulkan/util/meson.build