DRC: math: Replace exponential function for performance #342

Job	Run time
LP64-WIP	3m 29s
build-windows (imx8 imx8x imx8m)	6m 45s
build-linux (mnfst, imx8 imx8x imx8m)	4m 5s
build-windows (mtl)	5m 48s
build-linux (mnfst, mtl)	3m 56s
manifest-check	43s
build-linux (mnfst, lnl)	3m 58s
build-linux (mnfst, tgl tgl-h)	4m 59s
build-windows (tgl tgl-h)	7m 7s
build-linux (zmain, imx8 imx8x imx8m)	4m 18s
build-windows (-d, mtl)	5m 33s
build-linux (zmain, mtl)	3m 52s
build-linux (zmain, lnl)	4m 21s
build-linux (zmain, tgl tgl-h)	4m 47s
build-linux (-d, mnfst, mtl)	4m 4s
compare-linux-win	25s
	1h 8m 10s

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