Integrate u-boot-seco-imx/seco_lf_v2021.04_develop_928_ym

Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/9fb3dd941e567e0e77b8a7a203bb5206aa3e5ef7

[928] add support for revE

• set right HW configuration of GPIO pins as soon as possible in order to put PLT_RST# signal at high value
• use revE lists for devicetree choise in seco_config
• use revE overlay peripheral list in seco_config
• use revE devicetree file names for fdt_autodetect

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/53840ec7892c475b0045970b99a42ae95c4f8fb0

[928][PINCTRL] add GPIO pinctrl for revE

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/9ad0f04a21314b7cc484a45c75b49413cd486b85

[928][ENV_CONF] add revE overlay peripheral list (no CPLD fimware)

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/0d9f77003d64324c4c8abe073169c8bf0de48a2a

[928][ENV_CONF] add fdt file name for revE boards

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/605e9c84e7049ab758d571a14c983f2a1e52cd5d

[928][SECO_CONFIG] fix boot device id for onboard sd

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/f7da4b018db0c581d7bb9e4a48855b8ba30fbe73

[928] Fix pads configurations for boot devices

• Pads array length were wrongly specified
• Boot device print now differentiates between Internal and External SD