Fix typos in /Documentation : Misc

This patch fixes typos in various Documentation txts. The patch addresses some
misc words.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/usb/hiddev.txt b/Documentation/usb/hiddev.txt
index 6a79075..6e8c9f1 100644
--- a/Documentation/usb/hiddev.txt
+++ b/Documentation/usb/hiddev.txt
@@ -8,7 +8,7 @@
 examples for this are power devices (especially uninterruptable power
 supplies) and monitor control on higher end monitors.
 
-To support these disparite requirements, the Linux USB system provides
+To support these disparate requirements, the Linux USB system provides
 HID events to two separate interfaces:
 * the input subsystem, which converts HID events into normal input
 device interfaces (such as keyboard, mouse and joystick) and a