isci: convert port config agent timer to sci_timer

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
[squashed collateral cleanups]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index a3269b6..468357f 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -1366,6 +1366,8 @@
 		del_timer_sync(&sci_port->timer.timer);
 	}
 
+	del_timer_sync(&ihost->sci.port_agent.timer.timer);
+
 	isci_timer_list_destroy(ihost);
 }