Rockchip using the same bit definition for dram info and write
to os_reg, the col and bw info is not correct and let's fix it.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>