zephyr: Protect Zephyr heap metadata from corruption #21604

Job	Run time
build-windows (imx8 imx8x imx8m imx8ulp)	15m 23s
build-windows (-d, lnl)	11m 1s
build-windows (mtl lnl)	13m 24s
LP64-WIP	4m 16s
build-windows (ptl)	10m 32s
build-windows (tgl tgl-h)	12m 36s
build-linux (mnfst, mtl lnl)	6m 6s
build-linux (mnfst, ptl)	4m 50s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 44s
build-linux (mnfst, tgl tgl-h)	6m 12s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	7m 1s
build-linux (mnfst, --all)	16m 37s
build-linux (zmain, ptl)	4m 59s
build-linux (-d, mnfst, lnl)	4m 35s
build-linux (zmain, tgl tgl-h)	5m 43s
manifest-check	2m 46s
build-linux (zmain, mtl lnl)	6m 11s
compare-linux-win	45s
	2h 19m 41s

Provide feedback