miext: move over extinit_priv.h from include

Since most of the extension init logic (and on/off switches for them)
is driven from miext, this seems the appropriate place for the header.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

damageext/damageext.c

@@ -24,6 +24,7 @@
 #include <dix-config.h>
 
 #include "dix/dix_priv.h"
+#include "miext/extinit_priv.h"
 #include "os/client_priv.h"
 #include "Xext/panoramiX.h"
 #include "Xext/panoramiXsrv.h"
@@ -31,7 +32,6 @@
 #include "damageextint.h"
 #include "damagestr.h"
 #include "protocol-versions.h"
-#include "extinit_priv.h"
 #include "dixstruct_priv.h"
 
 #ifdef XINERAMA