RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 673d1dcaf0603e1eae5a587441eaa75b7983efec

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wusongjie 8aa4366cb2 Drivers: Support Open Firmware API and model of PIC		2 lat temu
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imx6ull-smart	8aa4366cb2 Drivers: Support Open Firmware API and model of PIC	2 lat temu