arm: imx8ulp: add container support

i.MX8ULP support using ROM API to load container image,
it use same ROM API as i.MX8MN/MP, and use same container format
as i.MX8QM/QXP.

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