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/drivers/char/mspec.c b/drivers/char/mspec.c
index 1997270..ecb89d7 100644
--- a/drivers/char/mspec.c
+++ b/drivers/char/mspec.c
@@ -248,7 +248,7 @@
 /*
  * mspec_mmap
  *
- * Called when mmaping the device.  Initializes the vma with a fault handler
+ * Called when mmapping the device.  Initializes the vma with a fault handler
  * and private data structure necessary to allocate, track, and free the
  * underlying pages.
  */