igep00x0: change mpurate from 500 to auto This patch changes the default mpurate variable from 500 to auto on all IGEP boards, with this the default rate is autoselected. Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Signed-off-by: Anatolij Gustschin <agust@denx.de>