[DNM] Switch to native Zephyr support for imx8MP #19207

Job	Run time
LP64-WIP	3m 50s
manifest-check	58s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	4m 35s
build-windows (imx8 imx8x imx8m imx8ulp)	5m 48s
build-linux (mnfst, mtl)	4m 23s
build-windows (mtl)	5m 50s
build-linux (mnfst, lnl)	4m 16s
build-windows (tgl tgl-h)	6m 18s
build-linux (mnfst, tgl tgl-h)	5m 7s
build-windows (-d, mtl)	5m 29s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	5m 4s
build-linux (zmain, mtl)	4m 19s
build-linux (zmain, lnl)	4m 18s
build-linux (zmain, tgl tgl-h)	10m 9s
build-linux (-d, mnfst, mtl)	4m 36s
build-linux (mnfst, --all)	9m 3s
compare-linux-win	1m 51s
	1h 25m 54s

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