Add imx-lf-6.18.20-2.0.0 u-boot and linux kernel patch

guowenxue

2026-07-12 1611b78835d46f256156f37f38d1bf8c412f148b

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PCIe 接口 LoRaWAN 模块购买:  https://detail.tmall.com/item.htm?id=648915373177  (E106-433G27P2)
PCIE转接测试板SMA天线接口购买: https://detail.tmall.com/item.htm?id=787359256472