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/operstates.txt b/Documentation/networking/operstates.txt
index 4a21d9b..c9074f9 100644
--- a/Documentation/networking/operstates.txt
+++ b/Documentation/networking/operstates.txt
@@ -2,7 +2,7 @@
 1. Introduction
 
 Linux distinguishes between administrative and operational state of an
-interface. Admininstrative state is the result of "ip link set dev
+interface. Administrative state is the result of "ip link set dev
 <dev> up or down" and reflects whether the administrator wants to use
 the device for traffic.