Integrate meta-seco-imx/u-boot-seco-imx/seco_lf_v2021.04-gm_962

Commit: https://git.seco.com/edgehog/layers/seco/meta-seco-imx/-/commit/4d727bf379ed273e6e23b806f1e86aba0ec3767d

Integrate u-boot-seco-imx/seco_lf_v2021.04-gm_962

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/21f33695b397a54014e93ca32c72f89b069479b4

[962] fix hdmi+lvds, lvds+hdmi video definitions

• correct swapped overlay files
• fix selected mxcfb on hdmi+lvds, lvds+hdmi video_args

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/28d4d087d3c5153ff948d8ce78435cf810ff320c

[962] add bpp specification to HDMI