meson: actually link with libomxil-bellagio

This state tracker actually needs to link, unlike vdpau.

Fixes: 1d36dc674d ("meson: build gallium omx state tracker")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Acked-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

meson.build

@@ -514,11 +514,6 @@ if with_gallium_omx
     endif
   endif
 endif
-if with_gallium_omx
-  dep_omx = declare_dependency(
-    compile_args : run_command(prog_pkgconfig, ['libomxil-bellagio', '--cflags']).stdout().split()
-  )
-endif
 
 _va = get_option('gallium-va')
 if not system_has_kms_drm