[PATCH] Defer tulip_select_media() to process context

Move tulip_select_media() processing to a workqueue, instead of
delaying in interrupt context, edited by Kyle McMartin to use kevent
thread, instead of creating its own workqueue.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Valerie Henson <val_henson@linux.intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>