Restore recvmsg in udp_socket_posix #15531

Job	Run time
raspi-2 / initialize	49s
raspi-2-skia / initialize	51s
raspi-2 / docker-build-image	1m 52s
raspi-2 / docker-unittest-image	0s
raspi-2-skia / docker-build-image	1m 49s
raspi-2-skia / docker-unittest-image	0s
raspi-2-skia / raspi-2-skia_devel	10m 19s
raspi-2-skia / raspi-2-skia_debug	14m 45s
raspi-2-skia / raspi-2-skia_qa	9m 20s
raspi-2-skia / raspi-2-skia_gold	8m 29s
raspi-2 / raspi_devel	10m 11s
raspi-2 / raspi_debug	14m 48s
raspi-2 / raspi_qa	9m 58s
raspi-2 / raspi_gold	10m 7s
raspi-2 / sbversion-17_devel	11m 57s
raspi-2 / sbversion-17_debug	14m 4s
raspi-2 / sbversion-17_qa	9m 12s
raspi-2 / sbversion-17_gold	10m 34s
raspi-2-skia / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
raspi-2-skia / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
raspi-2 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
raspi-2 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
	2h 19m 5s

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