tree-wide: Assorted spelling fixes

In particular, several occurances of funny versions of 'success',
'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address',
'beginning', 'desirable', 'separate' and 'necessary' are fixed.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Joe Perches <joe@perches.com>
Cc: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 9b44c6f..7985ae4 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -2924,7 +2924,7 @@
 		break;
 	default:
 		PM8001_MSG_DBG(pm8001_ha,
-			pm8001_printk("unkown device type(%x)\n", deviceType));
+			pm8001_printk("unknown device type(%x)\n", deviceType));
 		break;
 	}
 	phy->phy_type |= PORT_TYPE_SAS;