定速巡航，最高速限速

Signed-off-by: huhui <huhui@sharkgulf.com>

Applications/foc/core/PMSM_FOC_Core.c

@@ -757,7 +757,7 @@ bool PMSM_FOC_Set_CruiseSpeed(float rpm) {
 			PMSM_FOC_SetErrCode(FOC_NowAllowed_With_Speed);
 			return false;
 		}
-		gFoc_Ctrl.in.s_cruiseRPM = rpm;
+		gFoc_Ctrl.in.s_cruiseRPM = min(ABS(rpm), gFoc_Ctrl.userLim.s_motRPMLim)*SIGN(rpm);
 		return true;
 	}
 	PMSM_FOC_SetErrCode(FOC_NotCruiseMode);