scsi/megaraid fixed several typos in comments

Fixed several typos in comments in megaraid_mbox.c, megaraid_mm.c
and megaraid_sas_fusion.h.

Signed-off-by: Matthias Schid <aircrach115@gmail.com>
Signed-off-by: Stefan Huber <steffhip@gmail.com>
Signed-off-by: Simon Puels <simon.puels@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h
index 12ff01c..4eb8401 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.h
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h
@@ -88,7 +88,7 @@
 #define MEGASAS_FUSION_IN_RESET 0
 
 /*
- * Raid Context structure which describes MegaRAID specific IO Paramenters
+ * Raid Context structure which describes MegaRAID specific IO Parameters
  * This resides at offset 0x60 where the SGL normally starts in MPT IO Frames
  */