feat (uart): change log level of UART events (espressif#9563)

Changes from Warning to Verbose UART errors/warnings in order to make debugging easier, specially with UART BREAK.

Author: SuGlider

cores/esp32/HardwareSerial.cpp

@@ -254,18 +254,18 @@ void HardwareSerial::_uartEventTask(void *args) {
  currentErr = UART_BUFFER_FULL_ERROR;
  break;
  case UART_BREAK:
- log_w("UART%d RX break.", uart->_uart_nr);
+ log_v("UART%d RX break.", uart->_uart_nr);
  currentErr = UART_BREAK_ERROR;
  break;
  case UART_PARITY_ERR:
- log_w("UART%d parity error.", uart->_uart_nr);
+ log_v("UART%d parity error.", uart->_uart_nr);
  currentErr = UART_PARITY_ERROR;
  break;
  case UART_FRAME_ERR:
- log_w("UART%d frame error.", uart->_uart_nr);
+ log_v("UART%d frame error.", uart->_uart_nr);
  currentErr = UART_FRAME_ERROR;
  break;
- default: log_w("UART%d unknown event type %d.", uart->_uart_nr, event.type); break;
+ default: log_v("UART%d unknown event type %d.", uart->_uart_nr, event.type); break;
  }
  if (currentErr != UART_NO_ERROR) {
  if (uart->_onReceiveErrorCB) {