Integrate u-boot-seco-imx/seco_lf_v2021.04-gm_mx8qm_iommu
Commit: edgehog/bsp/nxp/u-boot-seco-imx@773dd5b4
[C43][C26][ENV] add IOMMU passthrough kernel cmdline arg
Activate IOMMU passthrough to workaround the hang of the boot process on filesystem load about every 50~100 consecutive tests
- Error details: [...] arm-smmu 51400000.iommu: Unhandled context fault: fsr=...
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@078bd3df
[SECO_ENV] add support for custom u-boot vars and kernel cmdline args
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Commit: edgehog/bsp/nxp/u-boot-seco-imx@c6d4beb3
[SECO_CONFIG] fix uninitialized variables error
Initalize the char array local vars of the set_video_specification function, since being used while uninitialized you may find random garbage inside the videomode U-Boot variable.