minios: add wait_event_deadline
minios: add wait_event_deadline

Signed-off-by: Samuel Thibault <49a5ed162141aa1a2ad45c2f70540ac844521912@eu.citrix.com>
Signed-off-by: Tim Deegan <5cc711b7fbb0bed4c5fc3c8c448329f1593ffc0d@eu.citrix.com>

rowhit/xen-minios,rowhit/xen-minios,rowhit/xen-minios