fix(uart): changing assert in order to avoid reset

Author: SuGlider

cores/esp32/esp32-hal-uart.c

@@ -317,7 +317,10 @@ static bool _uartTrySetIomuxPin(uart_port_t uart_num, int io_num, uint32_t idx)
   }
 
   // Assign the correct function to the GPIO.
-  assert(upin->iomux_func != -1);
+  if (upin->iomux_func == -1) {
+    log_e("IO#%d has bad IOMUX internal information. Switching to GPIO Matrix UART function.", io_num);
+    return false;
+  }
   if (uart_num < SOC_UART_HP_NUM) {
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 0)
     if (upin->input) {