As with DGA, move VidMode from being part of extmod to a built-in part
of the server, if compiled as such. This is initialised from
xf86ExtensionInit rather than miinitext because it's wholly dependent on
the Xorg DDX.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
