tree 59156cb6a1bda21ddf28fa09dce51368a7241118
parent 8209e4ef6f9d9086e4aac6afd4eeb5367ee0870b
author Bai Ping <ping.bai@nxp.com> 1531297388 +0800
committer Jacky Bai <ping.bai@nxp.com> 1548413476 +0800

plat: imx: refact the dram retention flow on imx8mm

All the DRAM timing related config is saved by SPL in OCRAM_S,
so no need to do save for these configs in ATF anymore.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
(cherry picked from commit f0893b1f52303ba5604480db71efe605161666eb)