PCA9451A uses similar BUCKs and LDO regulators as PCA9450B/C but has LDO2 and LDO3 removed. So reuse pca9450 PMIC and regulator driver and add new type for PCA9451A. Signed-off-by: Ye Li <ye.li@nxp.com> Reviewed-by: Marek Vasut <marex@denx.de>