tree-wide: fix assorted typos all over the place

That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index e688237..2534400 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -204,7 +204,7 @@
  *
  * Description
  * Call the NetLabel mechanism to set the label of a packet using @sid.
- * Returns zero on auccess, negative values on failure.
+ * Returns zero on success, negative values on failure.
  *
  */
 int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,