Integrate linux-seco-imx/seco/lf-5.10.y/develop-c12
c12: revert pci-imx6.c, don't want to break compatibility for other boards
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c12: update imx8mq pcie settings to match latest 5.10 commit, change qspi settings
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c12: enable pcie driver
c12: revert pci-imx6.c, don't want to break compatibility for other boards
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c12: update imx8mq pcie settings to match latest 5.10 commit, change qspi settings
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c12: enable pcie driver