更新devb_emmc应用配置

buildroot-external/configs/ark1668e_devb_emmc_defconfig

@@ -28,6 +28,7 @@ BR2_PACKAGE_QT5BASE_PNG=y
 BR2_PACKAGE_QT5BASE_DBUS=y
 BR2_PACKAGE_QJSON=y
 BR2_PACKAGE_DBUS_CPP=y
+BR2_PACKAGE_MEMTESTER=y
 BR2_PACKAGE_FDK_AAC=y
 BR2_PACKAGE_LIBMAD=y
 BR2_PACKAGE_LIBVORBIS=y

linux/drivers/tty/serial/ark_uart.c

@@ -187,7 +187,7 @@ struct uart_amba_port {
 #endif
 };
 
-static bool enable_console = false;//false;
+static bool enable_console = true;//false;
 
 static void (*mcu_serial_rev_handler)(unsigned char ch);
 static struct work_struct *mcu_serial_rev_task;