[ARM] 4047/1: Add initial board support for Contec Hypercontrol Micro9 boards.

Contec Micro9 (H/M/L) boards based on Cirrus Logic ep93xx (ep9315/ep9307/ep9302).

Signed-off-by: Manfred Gruber <m.gruber@tirol.com>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>