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/networking/cxgb.txt b/Documentation/networking/cxgb.txt
index 7632463..7b23175 100644
--- a/Documentation/networking/cxgb.txt
+++ b/Documentation/networking/cxgb.txt
@@ -56,7 +56,7 @@
 
       ethtool -C eth0 rx-usecs 100
 
-  You may also provide a timer latency value while disabling adpative-rx:
+  You may also provide a timer latency value while disabling adaptive-rx:
 
       ethtool -C <interface> adaptive-rx off rx-usecs <microseconds>