[SCSI] libiscsi, iscsi class: set tmf to a safe default and export in sysfs

Older tools will not be setting the tmf time outs since they
did not exists, so set them to a safe default.

And export abort and lu reset timeout values in sysfs.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index f15df8d..6573223 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1732,6 +1732,8 @@
 	session->host = shost;
 	session->state = ISCSI_STATE_FREE;
 	session->fast_abort = 1;
+	session->lu_reset_timeout = 15;
+	session->abort_timeout = 10;
 	session->mgmtpool_max = ISCSI_MGMT_CMDS_MAX;
 	session->cmds_max = cmds_max;
 	session->queued_cmdsn = session->cmdsn = initial_cmdsn;