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/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index ab95346..2e5c8a1 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -100,7 +100,7 @@
 	 * There are 2 variations of the rt2870 firmware.
 	 * a) size: 4kb
 	 * b) size: 8kb
-	 * Note that (b) contains 2 seperate firmware blobs of 4k
+	 * Note that (b) contains 2 separate firmware blobs of 4k
 	 * within the file. The first blob is the same firmware as (a),
 	 * but the second blob is for the additional chipsets.
 	 */
@@ -118,7 +118,7 @@
 
 	/*
 	 * 8kb firmware files must be checked as if it were
-	 * 2 seperate firmware files.
+	 * 2 separate firmware files.
 	 */
 	while (offset < len) {
 		if (!rt2800usb_check_crc(data + offset, 4096))