add log to uart_prointfer

src/iflytop/components/uart_printer/uart_printer.cpp

@@ -5,6 +5,7 @@ using namespace core;
 UartPrinter::UartPrinter() {}
 UartPrinter::~UartPrinter() {}
 void UartPrinter::initialize(string path, string rate) {
+  logger->info("initialize uart printer {} {}", path, rate);
   m_path  = path;
   m_rate  = rate;
   m_uart  = make_shared<Uart>();