Added missing atc_init() to some spindles #679

Job	Run time
build (ubuntu-latest, noradio)	1m 55s
tests (ubuntu-latest, tests)	28s
build (ubuntu-latest, wifi)	2m 16s
tests (macos-latest, tests)	27s
build (ubuntu-latest, bt)	2m 3s
tests (windows-latest, tests_nosan)	1m 18s
build (macos-latest, noradio)	1m 29s
build (macos-latest, wifi)	1m 40s
build (macos-latest, bt)	1m 42s
build (windows-latest, noradio)	5m 13s
build (windows-latest, wifi)	5m 18s
build (windows-latest, bt)	4m 46s
	28m 35s

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