Integrate u-boot-seco-imx/seco_lf_v2021.04_develop_ym_962
Commit: edgehog/bsp/nxp/u-boot-seco-imx@6c37c84f
[962] fix eMMC reset and pad control at SPL
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@06214be1
[A75] fix platform name detection at SPL
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@844267bf
[A75] fix eMMC reset and pad control at SPL
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@f57518ef
[A75] fix boot device detection
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@4f573ad6
[A75] Remove HDMI-LVDS and LVDS-HDMI framebuffer conflict
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@ea541d46
[A75] fix HDMI kernel command line spec_list
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@cc7d5386
[A75] add overlays constants names to seco environment
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@39eb21cf
[A75] update seco_config constants names
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@757ca4c9
[A75] update ram calibration values for 2x512M configuration