scheduler: zephyr_ll: misc fixes to make scheduler run in user-space #23283

Job	Run time
manifest-check	2m 47s
build-windows (mnfst, imx8m imx8ulp)	10m 45s
build-windows (mnfst, tgl)	8m 53s
build-windows (mnfst, ptl)	10m 54s
build-windows (mnfst, mtl)	8m 34s
build-linux (mnfst, mtl)	4m 48s
build-windows (mnfst, imx8 imx8x)	9m 45s
build-linux (mnfst, tgl)	4m 30s
build-linux (mnfst, imx8m imx8ulp)	4m 30s
build-windows (-d, mnfst, lnl)	9m 46s
build-linux (mnfst, ptl)	5m 52s
build-windows (mnfst, lnl)	8m 55s
build-windows (mnfst, tgl-h)	9m 27s
build-linux (mnfst, imx8 imx8x)	5m 13s
build-linux (-d, mnfst, lnl)	4m 23s
build-linux (mnfst, lnl)	4m 28s
LP64-WIP	3m 48s
build-linux (mnfst, tgl-h)	4m 15s
build-linux (mnfst, wcl imx95)	7m 27s
compare-linux-win	30s
	2h 9m 30s

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