target: Fix minor spelling typos in drivers/target

Correct spelling typo in printk and comment within drivers/target.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 41641ba..9a5f9a7 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -344,7 +344,7 @@
 			 */
 			rtpi = get_unaligned_be16(ptr + 2);
 			/*
-			 * Locate the matching relative target port identifer
+			 * Locate the matching relative target port identifier
 			 * for the struct se_device storage object.
 			 */
 			spin_lock(&dev->se_port_lock);