Cherry pick PR #3123: enable errno tests for posix socket rev and send #524

Job	Run time
raspi-2 / initialize	42s
raspi-2-skia / initialize	43s
raspi-2 / docker-build-image	1m 24s
raspi-2 / docker-unittest-image	0s
raspi-2-skia / docker-build-image	1m 22s
raspi-2-skia / docker-unittest-image	0s
raspi-2 / raspi_devel	8m 49s
raspi-2 / raspi_debug	12m 53s
raspi-2 / raspi_qa	8m 9s
raspi-2 / raspi_gold	8m 28s
raspi-2 / sbversion-15_devel	9m 18s
raspi-2 / sbversion-15_debug	15m 3s
raspi-2 / sbversion-15_qa	8m 15s
raspi-2 / sbversion-15_gold	7m 48s
raspi-2-skia / raspi-2-skia_devel	8m 58s
raspi-2-skia / raspi-2-skia_debug	12m 57s
raspi-2-skia / raspi-2-skia_qa	7m 50s
raspi-2-skia / raspi-2-skia_gold	7m 27s
raspi-2-skia / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
raspi-2-skia / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
raspi-2 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
raspi-2 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
	2h 0m 6s

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