scsi: Fix typo in pmcraid.h

Correct spelling "thresold" to "threshold" in
drivers/scsi/pmraid.h
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/scsi/pmcraid.h

@@ -857,11 +857,11 @@ static struct pmcraid_ioasc_error pmcraid_ioasc_error_table[] = {
 	{0x01180600, IOASC_LOG_LEVEL_HARD,
 	 "Recovered Error, soft media error, sector reassignment suggested"},
 	{0x015D0000, IOASC_LOG_LEVEL_HARD,
-	 "Recovered Error, failure prediction thresold exceeded"},
+	 "Recovered Error, failure prediction threshold exceeded"},
 	{0x015D9200, IOASC_LOG_LEVEL_HARD,
-	 "Recovered Error, soft Cache Card Battery error thresold"},
+	 "Recovered Error, soft Cache Card Battery error threshold"},
 	{0x015D9200, IOASC_LOG_LEVEL_HARD,
-	 "Recovered Error, soft Cache Card Battery error thresold"},
+	 "Recovered Error, soft Cache Card Battery error threshold"},
 	{0x02048000, IOASC_LOG_LEVEL_HARD,
 	 "Not Ready, IOA Reset Required"},
 	{0x02408500, IOASC_LOG_LEVEL_HARD,