[HAL][SMARTCARD] Remove __HAL_LOCK() and __HAL_UNLOCK() invocation from both HAL_xxx_RegisterCallback() and HAL_xxx_UnRegisterCallback()

Rationale: HAL_xxx_RegisterCallback() must be called before HAL_xxx_Init(), which creates the semaphore used when invoking __HAL_LOCK() and __HAL_UNLOCK(). Invoking __HAL_LOCK() and __HAL_UNLOCK() in HAL_xxx_RegisterCallback() means using the semaphore before its creation.

Src/stm32f7xx_hal_smartcard.c

diff --git a/Src/stm32f7xx_hal_smartcard.c b/Src/stm32f7xx_hal_smartcard.c
index 8668223..aa66420 100644
--- a/Src/stm32f7xx_hal_smartcard.c
+++ b/Src/stm32f7xx_hal_smartcard.c
@@ -461,6 +461,9 @@
 /**
   * @brief  Register a User SMARTCARD Callback
   *         To be used instead of the weak predefined callback
+  * @note   The HAL_SMARTCARD_RegisterCallback() may be called before HAL_SMARTCARD_Init()
+  *         in HAL_SMARTCARD_STATE_RESET to register callbacks for HAL_SMARTCARD_MSPINIT_CB_ID
+  *         and HAL_SMARTCARD_MSPDEINIT_CB_ID
   * @param  hsmartcard smartcard handle
   * @param  CallbackID ID of the callback to be registered
   *         This parameter can be one of the following values:
@@ -488,8 +491,6 @@
 
     return HAL_ERROR;
   }
-  /* Process locked */
-  __HAL_LOCK(hsmartcard);
 
   if (hsmartcard->gState == HAL_SMARTCARD_STATE_READY)
   {
@@ -568,15 +569,15 @@
     status =  HAL_ERROR;
   }
 
-  /* Release Lock */
-  __HAL_UNLOCK(hsmartcard);
-
   return status;
 }
 
 /**
   * @brief  Unregister an SMARTCARD callback
   *         SMARTCARD callback is redirected to the weak predefined callback
+  * @note   The HAL_SMARTCARD_UnRegisterCallback() may be called before HAL_SMARTCARD_Init()
+  *         in HAL_SMARTCARD_STATE_RESET to un-register callbacks for HAL_SMARTCARD_MSPINIT_CB_ID
+  *         and HAL_SMARTCARD_MSPDEINIT_CB_ID
   * @param  hsmartcard smartcard handle
   * @param  CallbackID ID of the callback to be unregistered
   *         This parameter can be one of the following values:
@@ -595,9 +596,6 @@
 {
   HAL_StatusTypeDef status = HAL_OK;
 
-  /* Process locked */
-  __HAL_LOCK(hsmartcard);
-
   if (HAL_SMARTCARD_STATE_READY == hsmartcard->gState)
   {
     switch (CallbackID)
@@ -676,9 +674,6 @@
     status =  HAL_ERROR;
   }
 
-  /* Release Lock */
-  __HAL_UNLOCK(hsmartcard);
-
   return status;
 }
 #endif /* USE_HAL_SMARTCARD_REGISTER_CALLBACKS */