module: tester: Ensure tester module is only built when explicitly se… #830

Job	Run time
LP64-WIP	3m 44s
manifest-check	50s
build-windows (imx8 imx8x imx8m imx8ulp)	15m 23s
build-windows (tgl tgl-h)	9m 58s
build-windows (ptl)	8m 26s
build-windows (mtl lnl)	11m 18s
build-linux (mnfst, mtl lnl)	6m 17s
build-linux (zmain, tgl tgl-h)	3m 10s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	3m 15s
build-linux (mnfst, tgl tgl-h)	5m 38s
build-linux (mnfst, ptl)	4m 13s
build-linux (zmain, ptl)	2m 51s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	7m 6s
build-windows (-d, lnl)	8m 57s
build-linux (mnfst, --all)	16m 51s
build-linux (zmain, mtl lnl)	3m 3s
build-linux (-d, mnfst, lnl)	4m 7s
compare-linux-win	2m 33s
	1h 57m 40s

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