[v2.7] Disable IMR context save for MTL [alternative comment wording] #14467

Job	Run time
LP64-WIP	5m 31s
build-linux (mnfst, imx8 imx8x imx8m)	8m 12s
build-linux (mnfst, tgl tgl-h)	8m 45s
build-linux (mnfst, mtl)	6m 20s
build-linux (mnfst, lnl)	6m 58s
build-linux (mnfst, -i IPC4 tgl tgl-h)	7m 45s
build-linux (zmain, imx8 imx8x imx8m)	7m 9s
build-linux (zmain, tgl tgl-h)	10m 12s
build-linux (zmain, mtl)	7m 28s
build-linux (zmain, lnl)	7m 0s
build-linux (zmain, -i IPC4 tgl tgl-h)	7m 24s
build-linux (-d, mnfst, mtl)	8m 53s
manifest-check	57s
build-windows (imx8 imx8x imx8m)	8m 26s
build-windows (tgl tgl-h)	13m 11s
build-windows (mtl)	8m 27s
build-windows (-i IPC4 tgl tgl-h)	14m 41s
build-windows (-d, mtl)	8m 2s
compare-linux-win	36s
	2h 25m 57s

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