vmh: add virtual heap stats #21914

Job	Run time
manifest-check	3m 25s
LP64-WIP	4m 40s
build-windows (tgl tgl-h)	11m 39s
build-windows (imx8 imx8x imx8m imx8ulp)	13m 59s
build-windows (mtl lnl)	11m 51s
build-windows (ptl)	9m 7s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	7m 15s
build-linux (mnfst, mtl lnl)	6m 22s
build-windows (-d, lnl)	8m 57s
build-linux (mnfst, ptl)	5m 9s
build-linux (zmain, ptl)	4m 32s
build-linux (mnfst, tgl tgl-h)	5m 53s
build-linux (-d, mnfst, lnl)	5m 25s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	3m 47s
build-linux (zmain, mtl lnl)	4m 24s
build-linux (zmain, tgl tgl-h)	4m 10s
build-linux (mnfst, --all)	17m 33s
compare-linux-win	39s
	2h 8m 47s

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