dax: Fixing compilation errors and better adaptation to LLEXT (contains Zephyr Dec03 update) #22057

Job	Run time
LP64-WIP	4m 2s
build-windows (-d, lnl)	10m 8s
build-windows (imx8 imx8x imx8m imx8ulp)	14m 42s
build-windows (tgl tgl-h)	10m 39s
build-windows (ptl)	9m 48s
build-linux (mnfst, mtl lnl)	6m 1s
build-linux (zmain, mtl lnl)	6m 13s
build-linux (mnfst, tgl tgl-h)	5m 35s
build-windows (mtl lnl)	12m 41s
manifest-check	3m 7s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 49s
build-linux (mnfst, --all)	11m 56s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	6m 53s
build-linux (mnfst, ptl)	5m 49s
build-linux (zmain, tgl tgl-h)	5m 18s
build-linux (-d, mnfst, lnl)	4m 39s
build-linux (zmain, ptl)	5m 44s
compare-linux-win	33s
	2h 10m 37s

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