uboot-imx

board/freescale: Update ddr clk_adjust

This patch updates clk_adjust to actual value for boards with
T-series and LS-series SoCs to match the setting of clk_adjust
in latest ddr driver.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>