busybox mdev added initramfs hook

sys/fs/eudev/eudev.sysconf

@@ -1,7 +1,8 @@
 #!/bin/sh
+mkdir -p /var/lib/ymp/sysconf/eudev/
 if [ ! -f /var/lib/ymp/sysconf/eudev/postinst.done ] ; then
     udevadm hwdb --update
-    touch /var/lib/ymp/sysconf/eudev/postinst.done
+    date > /var/lib/ymp/sysconf/eudev/postinst.done
 fi
 if [ -S /run/udev/control ]; then
 	udevadm control --reload