ARC: config info on nand and cpu freq

Signed-off-by: Frank Dols <frank.dols@synopsys.com>
ARC: use system ACE block driver from 2009.06 ml50x_arc600_arc700_sdata branch

Signed-off-by: Frank Dols <frank.dols@synopsys.com>
ARC: [plat-ml509] enable CFcard support,
  plus huge config file restructuring

Signed-off-by: Frank Dols <frank.dols@synopsys.com>
ARC: [plat-haps51] huge config file restructuring

Signed-off-by: Frank Dols <frank.dols@synopsys.com>