xserver-xf86-config: use modesetting for Vybrid

Explicitly use the generic Xorg driver for KMS devices.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

recipes-graphics/xorg-xserver/xserver-xf86-config/vf/xorg.conf

@@ -0,0 +1,12 @@
+Section "Device"
+    Identifier  "DCU DRM/KMS using Modesetting"
+    Driver      "modesetting"
+    Option      "kmsdev" "/dev/dri/card0"
+EndSection
+
+Section "ServerFlags"
+    Option "BlankTime"  "0"
+    Option "StandbyTime"  "0"
+    Option "SuspendTime"  "0"
+    Option "OffTime"  "0"
+EndSection