rtnr: clamp host-supplied control element counts #23625

Job	Run time
LP64-WIP	3m 48s
build-windows (mnfst, imx8m imx8ulp)	9m 20s
manifest-check	2m 59s
build-linux (mnfst, lnl)	4m 29s
build-windows (mnfst, lnl)	7m 26s
build-linux (mnfst, mtl)	4m 7s
build-linux (mnfst, imx8 imx8x)	4m 41s
build-windows (mnfst, ptl)	9m 41s
build-linux (mnfst, imx8m imx8ulp)	4m 28s
build-windows (mnfst, imx8 imx8x)	8m 48s
build-linux (mnfst, tgl-h)	3m 46s
build-linux (-d, mnfst, lnl)	4m 4s
build-windows (mnfst, tgl)	7m 56s
build-linux (mnfst, wcl imx95)	6m 14s
build-windows (mnfst, tgl-h)	8m 49s
build-windows (mnfst, mtl)	9m 28s
build-linux (mnfst, tgl)	4m 5s
build-windows (-d, mnfst, lnl)	9m 43s
build-linux (mnfst, ptl)	5m 14s
compare-linux-win	36s
	1h 59m 42s

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