zephyr: userspace: Fix compilation options #774

Job	Run time
manifest-check	47s
build-windows (ptl)	3m 44s
build-windows (mtl lnl)	3m 43s
build-linux (mnfst, mtl lnl)	3m 54s
build-windows (-d, lnl)	3m 43s
build-linux (zmain, tgl tgl-h)	3m 55s
build-linux (zmain, mtl lnl)	3m 55s
build-linux (mnfst, --all)	3m 55s
build-linux (mnfst, ptl)	3m 55s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	3m 55s
build-linux (mnfst, tgl tgl-h)	3m 54s
LP64-WIP	3m 55s
build-linux (zmain, ptl)	3m 56s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	3m 55s
build-linux (-d, mnfst, lnl)	3m 56s
build-windows (imx8 imx8x imx8m imx8ulp)	3m 42s
build-windows (tgl tgl-h)	3m 44s
compare-linux-win	1m 13s
	1h 3m 41s

Provide feedback