uboot-imx

ARM: UniPhier: add dump command of DDR PHY parameters

This commit adds a dump command of DDR PHY parameters of UniPhier
SoC family.  It might not be used very often for the regular operation
but it would be useful when something goes wrong with DDR memories.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>