This patch revised clk_adjust and wrlvl_start timings for corenet_ds, based
on testing on Virtium VL33B5163F-K9S and Kingston KVR1333D3Q8R9S/4G.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>