mixin: Add eos notification #721

Job	Run time
build-linux (mnfst, mtl lnl)	4m 27s
LP64-WIP	4m 15s
manifest-check	59s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	3m 41s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	4m 15s
build-linux (mnfst, ptl)	4m 26s
build-linux (mnfst, tgl tgl-h)	4m 16s
build-linux (zmain, tgl tgl-h)	3m 58s
build-windows (-d, lnl)	5m 16s
build-windows (imx8 imx8x imx8m imx8ulp)	5m 9s
build-windows (mtl lnl)	5m 13s
build-windows (tgl tgl-h)	5m 8s
build-windows (ptl)	5m 11s
build-linux (mnfst, --all)	4m 31s
build-linux (zmain, mtl lnl)	4m 40s
build-linux (-d, mnfst, lnl)	4m 19s
build-linux (zmain, ptl)	3m 54s
compare-linux-win	26s
	1h 14m 4s

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