meson/broadcom: libbroadcom_cle needs expat headers

Fixes: 1ae8018a6af81eec4832a57d9d0346aa3dd98d28
       ("meson: Add support for the vc4 driver.")
Reviewed-by: Eric Anholt <eric@anholt.net>
diff --git a/src/broadcom/cle/meson.build b/src/broadcom/cle/meson.build
index afaf5a1..6c72f94 100644
--- a/src/broadcom/cle/meson.build
+++ b/src/broadcom/cle/meson.build
@@ -58,6 +58,6 @@
   'v3d_decoder.c',
   include_directories : [inc_common, inc_broadcom],
   c_args : [c_vis_args, no_override_init_args],
-  dependencies : [dep_libdrm, dep_valgrind],
+  dependencies : [dep_libdrm, dep_valgrind, dep_expat],
   build_by_default : false,
 )