imx: imx8ulp: configure XRDC for DRAM access from S400

Need to add DRAM access permission for S400, as S400 needs to access
it When SPL calls image authentication

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
1 file changed