west.yml: update zephyr to afcfbf6dee0 #22869

Job	Run time
LP64-WIP	3m 30s
manifest-check	2m 58s
build-windows (mnfst, tgl-h)	8m 17s
build-windows (mnfst, imx8 imx8x)	10m 15s
build-linux (mnfst, ptl)	5m 23s
build-linux (mnfst, tgl)	4m 8s
build-windows (mnfst, mtl)	11m 41s
build-linux (mnfst, imx8m imx8ulp)	4m 53s
build-windows (mnfst, tgl)	8m 47s
build-linux (mnfst, lnl)	4m 33s
build-windows (-d, mnfst, lnl)	9m 11s
build-linux (mnfst, wcl imx95)	7m 8s
build-windows (mnfst, ptl)	9m 58s
build-windows (mnfst, imx8m imx8ulp)	10m 0s
build-linux (mnfst, imx8 imx8x)	5m 0s
build-windows (mnfst, lnl)	8m 59s
build-linux (-d, mnfst, lnl)	4m 10s
build-linux (mnfst, tgl-h)	4m 14s
build-linux (mnfst, mtl)	4m 12s
compare-linux-win	30s
	2h 7m 47s

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