message: fix(sdk): usbboot command typos
  Change-type: patch
diff: @@ -245,20 +245,20 @@ const startFileServer = (device, endpoint, files) => {
  }, (error) => {
  debug(`Got ${error.message} when reading a command, assuming everything is done`)
  return {
  - command: protocol.FILE_MESSAGE_COMMAND_DONE
  + command: protocol.FILE_MESSAGE_COMMANDS.DONE
  }
  })
  .then((fileMessage) => {
  debug(`Received message: ${fileMessage.command} -> ${fileMessage.fileName}`)
  - if (fileMessage.command === protocol.FILE_MESSAGE_COMMAND_DONE) {
  + if (fileMessage.command === protocol.FILE_MESSAGE_COMMANDS.DONE) {
  debug('Done')
  return Bluebird.resolve()
  }
  return Bluebird.try(() => {
  - if (fileMessage.command === protocol.FILE_MESSAGE_COMMAND_GET_FILE_SIZE) {
  + if (fileMessage.command === protocol.FILE_MESSAGE_COMMANDS.GET_FILE_SIZE) {
  debug(`Getting the size of ${fileMessage.fileName}`)
  const fileSize = _.get(files, [ fileMessage.fileName, 'length' ])
  @@ -272,7 +272,7 @@ const startFileServer = (device, endpoint, files) => {
  return protocol.sendBufferSize(device, fileSize)
  }
  - if (fileMessage.command === protocol.FILE_MESSAGE_COMMAND_READ_FILE) {
  + if (fileMessage.command === protocol.FILE_MESSAGE_COMMANDS.READ_FILE) {
  debug(`Reading ${fileMessage.fileName}`)
  const fileBuffer = _.get(files, [ fileMessage.fileName ])
  