meson: fix tizonia compilation

It needs to have src/egl in it's includes as well.

Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Reviewed-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Julien Isorce <julien.isorce@gmail.com>
Tested-by: Karol Herbst <kherbst@redhat.com>

src/gallium/state_trackers/omx/meson.build

@@ -54,6 +54,7 @@ inc_st_omx = [
   include_directories('../../state_trackers/dri'),
   include_directories('../../../egl/drivers/dri2'),
   include_directories('../../../egl/main'),
+  include_directories('../../../egl'),
   include_directories('../../../gbm/backends/dri'),
   include_directories('../../../gbm/main'),
   include_directories('../../../loader')