zephyr: native_sim: run boot tests at boot if STANDALONE enabled #23676

Job	Run time
build-windows (mnfst, ptl)	8m 40s
LP64-WIP	3m 33s
build-linux (mnfst, lnl)	4m 4s
manifest-check	2m 50s
build-windows (mnfst, mtl)	8m 53s
build-windows (mnfst, imx8 imx8x)	9m 5s
build-linux (mnfst, tgl)	4m 0s
build-windows (-d, mnfst, lnl)	8m 10s
build-linux (mnfst, wcl imx95)	5m 40s
build-windows (mnfst, tgl-h)	8m 22s
build-windows (mnfst, imx8m imx8ulp)	9m 25s
build-linux (-d, mnfst, lnl)	4m 16s
build-linux (mnfst, tgl-h)	4m 0s
build-windows (mnfst, tgl)	8m 48s
build-linux (mnfst, imx8 imx8x)	4m 25s
build-linux (mnfst, mtl)	4m 5s
build-linux (mnfst, ptl)	5m 26s
build-linux (mnfst, imx8m imx8ulp)	4m 33s
build-windows (mnfst, lnl)	8m 25s
compare-linux-win	24s
	1h 57m 4s

Provide feedback