[LL][UTILS] Fix a note about Ticks parameter

Inc/stm32l4xx_ll_utils.h

diff --git a/Inc/stm32l4xx_ll_utils.h b/Inc/stm32l4xx_ll_utils.h
index d465c0d..8c2d542 100644
--- a/Inc/stm32l4xx_ll_utils.h
+++ b/Inc/stm32l4xx_ll_utils.h
@@ -274,7 +274,7 @@
   * @param  HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)
   * @note   When a RTOS is used, it is recommended to avoid changing the SysTick
   *         configuration by calling this function, for a delay use rather osDelay RTOS service.
-  * @param  Ticks Number of ticks
+  * @param  Ticks Frequency of Ticks (Hz)
   * @retval None
   */
 __STATIC_INLINE void LL_InitTick(uint32_t HCLKFrequency, uint32_t Ticks)