build from: 5b2c650 Version: DDR Version 1.29 20230328 update feature: 6b96f96 rk3399: ddr: fix single channel loop at "advanced training done" 4617362 rk3399: ddr: fix dbw detect bug Signed-off-by: Zhihuan He <huan.he@rock-chips.com> Change-Id: I17296b96362af4e9768f316346a443b265ef2309