rpmbuild: update code layout.
rpmbuild: update code layout.
move chroot_dir preparation from rpmbuild.sh to setup-ci-env.sh.
add "distro_targz_file" parameter.
remove "distro" parameter.
replace "${distro_name}-${distro_ver}_${distro_arch}" with "distro_dir".
remove "distro_relver" parameter.
Merge branch 'refactor-rpmbuild'