restore altq support in the rl driver; we overlooked the driver split when merging 2.9.
restore altq support in the rl driver; we overlooked the driver
split when merging 2.9.

report by jbd0@dingoblue.net.au

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame