target/iscsi: Fold _decide_list_to_build into _build_pdu_and_seq_lists

Rename iscsit_build_pdu_and_seq_list to iscsit_do_build_pdu_and_seq_lists

Rename iscsit_do_build_list to iscsit_build_pdu_and_seq_lists

Move code from iscsit_decide_list_to_build into _seq_pdu_list.c, seems
a better fit.

Also update some comments in pdu/seq code for correctness and whitespace.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index a29a1bb..e9cc087 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1060,7 +1060,7 @@
 		 */
 		send_check_condition = 1;
 	} else {
-		if (iscsit_decide_list_to_build(cmd, payload_length) < 0)
+		if (iscsit_build_pdu_and_seq_lists(cmd, payload_length) < 0)
 			return iscsit_add_reject_from_cmd(
 				ISCSI_REASON_BOOKMARK_NO_RESOURCES,
 				1, 1, buf, cmd);