Correct frequency error in AeroDyn driver prescribed motions #3280

Job	Run time
build-drivers-release	5m 15s
build-all-debug	6m 31s
build-all-debug-single	3m 48s
build-postlib-release	11m 57s
build-test-uadriver-debug	2m 10s
rtest-module-drivers	2m 4s
rtest-modules-debug	10m 45s
build-fastfarm-release	10m 49s
build-interfaces-release	4m 14s
build-openfast-release	4m 13s
rtest-OF	14m 43s
rtest-OF-5MW_Land_BD_DLL_WTurb	2m 36s
rtest-OF-5MW_Land_AeroMap	2m 7s
rtest-OF-5MW_OC3Mnpl_DLL_WTurb_WavesIrr	2m 32s
rtest-OF-5MW_OC3Trpd_DLL_WSt_WavesReg	5m 21s
rtest-OF-5MW_OC4Jckt_DLL_WTurb_WavesIrr_MGrowth	2m 51s
rtest-OF-5MW_OC4Semi_WSt_WavesWN	1m 47s
rtest-OF-linearization	5m 9s
rtest-OF-simulink	11m 20s
rtest-interfaces	3m 47s
rtest-FF	2m 42s
	1h 56m 41s

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