Add binary file transfer test

buildroot/tests/mks_robin_nano35

 opt_set MOTHERBOARD BOARD_MKS_ROBIN_NANO_V2
 opt_disable TFT_INTERFACE_FSMC TFT_RES_320x240
 opt_enable TFT_INTERFACE_SPI TFT_RES_480x320
-exec_test $1 $2 "MKS Robin v2 nano New Color UI 480x320 SPI" "$3"
+opt_enable BINARY_FILE_TRANSFER
+exec_test $1 $2 "MKS Robin v2 nano New Color UI 480x320 SPI + BINARY_FILE_TRANSFER" "$3"
 
 #
 # MKS Robin v2 nano LVGL SPI + TMC