Fix some typos in Documentation/: 'A'

This patch fixes typos in various Documentation txts.
This patch addresses some words starting with the letter 'A'.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index 46b9b38..a60f3ce 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -1915,7 +1915,7 @@
 access depends on a read, not all do, so it may not be relied on.
 
 Other CPUs may also have split caches, but must coordinate between the various
-cachelets for normal memory accesss.  The semantics of the Alpha removes the
+cachelets for normal memory accesses.  The semantics of the Alpha removes the
 need for coordination in absence of memory barriers.