ipc4: mixin: Add gain support (generic and HIFI3) #17474

Job	Run time
LP64-WIP	4m 8s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	5m 17s
build-windows (imx8 imx8x imx8m imx8ulp)	6m 59s
build-linux (mnfst, mtl)	4m 34s
manifest-check	53s
build-windows (mtl)	5m 45s
build-linux (mnfst, lnl)	4m 28s
build-windows (tgl tgl-h)	6m 35s
build-linux (mnfst, tgl tgl-h)	5m 27s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	5m 11s
build-windows (-d, mtl)	5m 50s
build-linux (zmain, mtl)	4m 26s
build-linux (zmain, lnl)	4m 29s
build-linux (zmain, tgl tgl-h)	5m 36s
build-linux (-d, mnfst, mtl)	4m 45s
compare-linux-win	17s
	1h 14m 40s

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