audio: module_adapter: fix sizeof(pointer) and underflow in module_ext_init_decode #23046

Job	Run time
manifest-check	2m 52s
LP64-WIP	3m 55s
build-windows (mnfst, lnl)	9m 55s
build-windows (mnfst, ptl)	9m 23s
build-windows (-d, mnfst, lnl)	8m 22s
build-windows (mnfst, imx8m imx8ulp)	11m 20s
build-windows (mnfst, tgl)	9m 3s
build-windows (mnfst, tgl-h)	10m 22s
build-windows (mnfst, mtl)	9m 18s
build-linux (mnfst, imx8m imx8ulp)	5m 0s
build-windows (mnfst, imx8 imx8x)	10m 28s
build-linux (mnfst, ptl)	6m 3s
build-linux (mnfst, imx8 imx8x)	4m 55s
build-linux (mnfst, mtl)	5m 46s
build-linux (mnfst, tgl-h)	4m 22s
build-linux (mnfst, tgl)	5m 5s
build-linux (mnfst, wcl imx95)	7m 25s
build-linux (mnfst, lnl)	4m 15s
build-linux (-d, mnfst, lnl)	4m 27s
compare-linux-win	31s
	2h 12m 47s

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