linux-imx

ARM: shmobile: marzen-reference: Don't include legacy clock.h

The marzen-reference board file doesn't need the clock.h header, don't
include it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>