[ARM] 4978/1: [AT91] KB9260 (CAM60) board support

Support for the Kwikbyte KB9260 (CAM60) board.
 <http://www.kwikbyte.com/KB9260.html

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Original patch from Kwikbyte.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>