[HAL][UART] Fix typo in UART_IT_TXE bit description

Src/stm32f2xx_hal_uart.c

diff --git a/Src/stm32f2xx_hal_uart.c b/Src/stm32f2xx_hal_uart.c
index 011305c..544b7b2 100644
--- a/Src/stm32f2xx_hal_uart.c
+++ b/Src/stm32f2xx_hal_uart.c
@@ -3522,7 +3522,7 @@
 
     if (--huart->TxXferCount == 0U)
     {
-      /* Disable the UART Transmit Complete Interrupt */
+      /* Disable the UART Transmit Data Register Empty Interrupt */
       __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
 
       /* Enable the UART Transmit Complete Interrupt */