Merge pull request #1751 from martinling/si5351c-next #489

Job	Run time
includes-check (HACKRF_ONE, 3.12.0)	1m 41s
includes-check (UNIVERSAL, 3.12.0)	1m 49s
includes-check (UNIVERSAL, latest)	1m 49s
includes-check (RAD1O, 3.12.0)	1m 45s
includes-check (HACKRF_ONE, latest)	1m 46s
includes-check (PRALINE, 3.12.0)	1m 56s
includes-check (PRALINE, latest)	1m 44s
includes-check (JAWBREAKER, latest)	1m 42s
includes-check (RAD1O, latest)	1m 44s
includes-check (JAWBREAKER, 3.12.0)	1m 46s
	17m 42s

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