Add new board orpheus_pico #16928

Job	Run time
scheduler	1m 14s
docs	12m 47s
mpy-cross-mac	1m 4s
windows	0s
windows-zephyr	0s
mpy-cross / build (static)	15s
tests / run (all)	54s
tests / run (mpy)	33s
mpy-cross / build (static-aarch64)	38s
tests / run (native)	41s
mpy-cross / build (static-mingw)	49s
mpy-cross / build (static-raspbian)	42s
tests / run (native_mpy)	35s
ports (raspberrypi) / board (orpheus_pico)	2m 29s
	22m 41s

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