mesa3d: fix build without dri drivers

If no dri drivers are enabled, then mesa shouldn't get built with dri
support.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: Bernd Kuhls <bernd.kuhls@t-online.de>

package/mesa3d/mesa3d.mk

@@ -75,7 +75,7 @@ endif
 
 ifeq ($(MESA3D_DRI_DRIVERS-y),)
 MESA3D_CONF_OPT += \
-	--without-dri-drivers
+	--without-dri-drivers --without-dri
 else
 ifeq ($(BR2_PACKAGE_XPROTO_DRI3PROTO),y)
 MESA3D_DEPENDENCIES += xlib_libxshmfence xproto_dri3proto xproto_presentproto