expect script for chromium init repo.

This script is intented to deploy for daily build chromium OS

• build chroimum OS
• build firmware
• copy local manifest file
• copy common utility to {chromium}/src/scrips directory

usage

# parameter is deprecated, please setup the user_passwork and repo_directory in config.txt
$ ./main_cros_reposync_build.sh

chromium repo branch support

• main
• firmware-volteer-13672.B

todo

1. add branch support - done
2. add config for build package / build firmware / build image switch