Re-add mklittlefs to package.json (#8060)
Re-add mklittlefs to package.json (#8060)

Fix #8057
esp8266/Arduino,esp8266/Arduino,sticilface/Arduino,esp8266/Arduino,sticilface/Arduino,esp8266/Arduino,esp8266/Arduino,sticilface/Arduino,sticilface/Arduino,sticilface/Arduino