toml: modularise TOML configuration #16139

Job	Run time
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	5m 5s
build-linux (mnfst, mtl)	4m 48s
build-linux (mnfst, lnl)	4m 27s
LP64-WIP	3m 56s
build-linux (mnfst, tgl tgl-h)	4m 12s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	5m 4s
manifest-check	2m 42s
build-linux (zmain, mtl)	6m 8s
build-linux (zmain, lnl)	4m 31s
build-linux (zmain, tgl tgl-h)	4m 36s
build-linux (-d, mnfst, mtl)	4m 38s
build-windows (imx8 imx8x imx8m imx8ulp)	7m 58s
build-windows (mtl)	6m 2s
build-windows (tgl tgl-h)	7m 54s
build-windows (-d, mtl)	5m 32s
compare-linux-win	57s
	1h 18m 30s

Provide feedback