package/x11r7/xdriver_xf86-video-qxl: Update broken URL in Config.in helptext

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit 562045056b7a25131cc17f58055fd5d6d7bf305c)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/x11r7/xdriver_xf86-video-qxl/Config.in

@@ -9,4 +9,4 @@ config BR2_PACKAGE_XDRIVER_XF86_VIDEO_QXL
 	help
 	  QEMU QXL paravirt video driver
 
-	  http://www.spice-space.org/page/XorgQXL
+	  https://gitlab.freedesktop.org/xorg/driver/xf86-video-qxl