userspace: proxy: Fix typo in variable name #22051

Job	Run time
manifest-check	3m 27s
LP64-WIP	3m 31s
build-windows (-d, lnl)	3m 20s
build-windows (imx8 imx8x imx8m imx8ulp)	3m 32s
build-windows (mtl lnl)	3m 32s
build-windows (tgl tgl-h)	3m 32s
build-linux (mnfst, tgl tgl-h)	3m 29s
build-windows (ptl)	3m 31s
build-linux (mnfst, mtl lnl)	3m 28s
build-linux (mnfst, --all)	3m 32s
build-linux (zmain, mtl lnl)	3m 30s
build-linux (zmain, ptl)	3m 32s
build-linux (-d, mnfst, lnl)	3m 33s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	3m 33s
build-linux (mnfst, ptl)	3m 32s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	3m 31s
build-linux (zmain, tgl tgl-h)	3m 24s
compare-linux-win	22s
	59m 51s

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