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/lib/dma-debug.c b/lib/dma-debug.c
index ce6b7ea..d9b08e0 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -259,7 +259,7 @@
 		 * times. Without a hardware IOMMU this results in the
 		 * same device addresses being put into the dma-debug
 		 * hash multiple times too. This can result in false
-		 * positives being reported. Therfore we implement a
+		 * positives being reported. Therefore we implement a
 		 * best-fit algorithm here which returns the entry from
 		 * the hash which fits best to the reference value
 		 * instead of the first-fit.