Integrate u-boot-seco-imx/seco_lf_v2021.04-gm_d18_reva

Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/591a026d71a2a8806dc73912778b9247d6c0e220

[D18] add CSI peripherals: RevA backwards compatibility

Add D18 RevA support for OV5640 CSI camera overlays:

• on seco_config tool, in case of RevA, choose from a different peripherals overlay list