Test user-space and enable CONFIG_USERSPACE on select platforms #22067

Job	Run time
manifest-check	2m 56s
build-windows (tgl tgl-h)	11m 25s
build-windows (-d, lnl)	10m 22s
build-windows (ptl)	10m 24s
build-windows (imx8 imx8x imx8m imx8ulp)	13m 53s
LP64-WIP	4m 9s
build-windows (mtl lnl)	12m 14s
build-linux (-d, mnfst, lnl)	4m 37s
build-linux (zmain, mtl lnl)	6m 7s
build-linux (mnfst, ptl)	6m 2s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	7m 4s
build-linux (mnfst, wcl imx95)	7m 17s
build-linux (mnfst, mtl lnl)	6m 12s
build-linux (mnfst, tgl tgl-h)	5m 42s
build-linux (zmain, tgl tgl-h)	5m 41s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	7m 20s
build-linux (zmain, ptl)	5m 57s
compare-linux-win	29s
	2h 7m 51s

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