fix(imx8m): fix the dfiphymaster setting after dvfs

the dfi phy master setting need to be save/restore to make
sure it aligned with the initial config.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Anson Huang <anson.huang@nxp.com>
Change-Id: I4f572b9aff9cc47a6c28524ce0fe03cdc66b88a1
1 file changed