trivial: fix then -> than typos in comments and documentation

- (better, more, bigger ...) then -> (...) than

Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/net/wireless/rt2x00/rt2x00crypto.c b/drivers/net/wireless/rt2x00/rt2x00crypto.c
index 37ad0d2..aee9cba 100644
--- a/drivers/net/wireless/rt2x00/rt2x00crypto.c
+++ b/drivers/net/wireless/rt2x00/rt2x00crypto.c
@@ -184,8 +184,8 @@
 	 * Make room for new data, note that we increase both
 	 * headsize and tailsize when required. The tailsize is
 	 * only needed when ICV data needs to be inserted and
-	 * the padding is smaller then the ICV data.
-	 * When alignment requirements is greater then the
+	 * the padding is smaller than the ICV data.
+	 * When alignment requirements is greater than the
 	 * ICV data we must trim the skb to the correct size
 	 * because we need to remove the extra bytes.
 	 */