wip: build: add support for llvm clang #23517

Job	Run time
LP64-WIP	3m 46s
manifest-check	2m 39s
build-linux (mnfst, tgl)	4m 15s
build-linux (mnfst, imx8 imx8x)	4m 53s
build-windows (mnfst, imx8m imx8ulp)	10m 42s
build-windows (mnfst, ptl)	11m 17s
build-linux (mnfst, imx8m imx8ulp)	5m 9s
build-windows (mnfst, lnl)	8m 45s
build-windows (mnfst, mtl)	8m 27s
build-linux (mnfst, tgl-h)	4m 10s
build-linux (-d, mnfst, lnl)	4m 34s
build-linux (mnfst, mtl)	4m 42s
build-windows (mnfst, tgl-h)	9m 52s
build-linux (mnfst, wcl imx95)	6m 54s
build-windows (-d, mnfst, lnl)	9m 39s
build-linux (mnfst, lnl)	4m 24s
build-linux (mnfst, ptl)	5m 41s
build-windows (mnfst, imx8 imx8x)	9m 52s
build-windows (mnfst, tgl)	8m 58s
compare-linux-win	28s
	2h 9m 7s

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