configure, meson: move vde detection to meson

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20211007130829.632254-11-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/meson_options.txt b/meson_options.txt
index 904e15d..7d0fa1c 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -129,6 +129,8 @@
        description: 'U2F emulation support')
 option('usb_redir', type : 'feature', value : 'auto',
        description: 'libusbredir support')
+option('vde', type : 'feature', value : 'auto',
+       description: 'vde network backend support')
 option('virglrenderer', type : 'feature', value : 'auto',
        description: 'virgl rendering support')
 option('vnc', type : 'feature', value : 'auto',