Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h
index 3343824..040f721 100644
--- a/drivers/scsi/3w-9xxx.h
+++ b/drivers/scsi/3w-9xxx.h
@@ -61,7 +61,7 @@
 	{0x0000, "AEN queue empty"},
 	{0x0001, "Controller reset occurred"},
 	{0x0002, "Degraded unit detected"},
-	{0x0003, "Controller error occured"},
+	{0x0003, "Controller error occurred"},
 	{0x0004, "Background rebuild failed"},
 	{0x0005, "Background rebuild done"},
 	{0x0006, "Incomplete unit detected"},