feat(nxp-ddr): add workaround for errata A050958

Set the receiver gain to max value to recover
cold temp marginality issue for phy-gen2

Signed-off-by: Pankit Garg <pankit.garg@nxp.com>
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: If639fa3ed404cf6e1b8abcc2b7137db1fdd0b2c2
3 files changed