overlays: i2c-sensor: Add the scd4x CO2 sensors #4167

Job	Run time
build (arm64, arm64, defconfig, kernel8)	23m 1s
build (bcm2712, arm64, bcm2712_defconfig, kernel_2712)	25m 20s
build (bcm2709, arm, bcm2709_defconfig, kernel7)	19m 55s
build (bcm2711_rt, arm64, bcm2711_rt_defconfig, kernel8_rt)	25m 26s
build (bcm2711, arm64, bcm2711_defconfig, kernel8)	25m 10s
build (bcm2835, arm, bcm2835_defconfig, kernel)	6m 46s
build (bcmrpi, arm, bcmrpi_defconfig, kernel)	18m 56s
	2h 24m 34s

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