zephyr: schedule: allow user-space to access scheduler list #23248

Job	Run time
LP64-WIP	4m 2s
build-windows (mnfst, lnl)	11m 12s
build-linux (mnfst, imx8 imx8x)	5m 3s
build-windows (-d, mnfst, lnl)	9m 35s
build-linux (mnfst, tgl-h)	4m 10s
build-windows (mnfst, tgl-h)	7m 42s
build-windows (mnfst, imx8 imx8x)	9m 41s
build-windows (mnfst, ptl)	10m 42s
build-linux (mnfst, mtl)	4m 47s
build-linux (mnfst, ptl)	6m 11s
build-linux (mnfst, tgl)	4m 10s
build-linux (-d, mnfst, lnl)	4m 52s
build-linux (mnfst, lnl)	4m 41s
manifest-check	2m 49s
build-windows (mnfst, mtl)	9m 48s
build-windows (mnfst, tgl)	7m 47s
build-linux (mnfst, imx8m imx8ulp)	4m 47s
build-windows (mnfst, imx8m imx8ulp)	10m 22s
build-linux (mnfst, wcl imx95)	7m 29s
compare-linux-win	28s
	2h 10m 18s

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