userspace: proxy: Add support for llext modules #23231

Job	Run time
LP64-WIP	3m 49s
manifest-check	2m 48s
build-windows (mnfst, tgl)	8m 43s
build-linux (mnfst, tgl-h)	5m 2s
build-linux (mnfst, mtl)	4m 33s
build-linux (mnfst, ptl)	5m 36s
build-windows (mnfst, ptl)	11m 37s
build-linux (mnfst, wcl imx95)	8m 15s
build-linux (mnfst, imx8 imx8x)	5m 59s
build-linux (mnfst, tgl)	4m 19s
build-windows (mnfst, imx8 imx8x)	12m 56s
build-windows (mnfst, mtl)	9m 53s
build-linux (-d, mnfst, lnl)	4m 28s
build-linux (mnfst, imx8m imx8ulp)	5m 35s
build-windows (mnfst, imx8m imx8ulp)	10m 2s
build-linux (mnfst, lnl)	4m 28s
build-windows (mnfst, tgl-h)	8m 32s
build-windows (-d, mnfst, lnl)	9m 28s
build-windows (mnfst, lnl)	9m 33s
compare-linux-win	29s
	2h 16m 5s

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