Added script for setting root passwd.

oneshot/scripts/0004-set-root-passwd

+#!/bin/sh
+
+# Thanks to the bug in busybox sometimes uci-default script doesn't work
+
+PASS=`grep root /etc/shadow | cut -d ':' -f2`
+
+if [ $PASS == "x" ]; then
+    DUMMY_PASS=`tr -dc A-Za-z0-9_ < /dev/urandom | head -c 64`
+    echo -e "${DUMMY_PASS}\n${DUMMY_PASS}" | passwd root
+fi
+