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

Commit: edgehog/layers/seco/meta-seco-imx@8551f1b3

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

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Commit: edgehog/bsp/nxp/u-boot-seco-imx@591a026d

[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