dtoverlay for Ilitek 23XX, 25XX, and 213X touch controllers #4270

Job	Run time
build (arm64, arm64, defconfig, kernel8)	20m 47s
build (bcm2835, arm, bcm2835_defconfig, kernel)	6m 14s
build (bcm2711_rt, arm64, bcm2711_rt_defconfig, kernel8_rt)	23m 47s
build (bcm2709, arm, bcm2709_defconfig, kernel7)	19m 23s
build (bcmrpi, arm, bcmrpi_defconfig, kernel)	18m 39s
build (bcm2711, arm64, bcm2711_defconfig, kernel8)	22m 6s
build (bcm2712, arm64, bcm2712_defconfig, kernel_2712)	23m 3s
	2h 13m 59s

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