Correct frequency error in AeroDyn driver prescribed motions #3279

Job	Run time
build-all-debug	7m 7s
build-all-debug-single	3m 35s
build-postlib-release	10m 54s
build-drivers-release	5m 34s
build-test-uadriver-debug	2m 5s
rtest-module-drivers	1m 52s
rtest-modules-debug	10m 39s
build-openfast-release	5m 2s
build-fastfarm-release	11m 26s
build-interfaces-release	4m 37s
rtest-interfaces	3m 46s
rtest-OF-5MW_OC4Semi_WSt_WavesWN	1m 41s
rtest-OF-simulink	11m 31s
rtest-OF-5MW_Land_AeroMap	1m 31s
rtest-OF	14m 31s
rtest-OF-5MW_Land_BD_DLL_WTurb	2m 53s
rtest-OF-5MW_OC3Mnpl_DLL_WTurb_WavesIrr	2m 59s
rtest-OF-5MW_OC3Trpd_DLL_WSt_WavesReg	5m 28s
rtest-OF-5MW_OC4Jckt_DLL_WTurb_WavesIrr_MGrowth	2m 9s
rtest-OF-linearization	4m 45s
rtest-FF	2m 30s
	1h 56m 35s

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