Why I did it
Multiple build failed in 202012 branch
It is caused by the disorder of the package urls retrieved from the command "apt-get download --print-urls "
- Support compile sonic arm image on arm server. If arm image compiling is executed on arm server instead of using qemu mode on x86 server, compile time can be saved significantly.
- Add kernel argument systemd.unified_cgroup_hierarchy=0 for upgrade systemd to version 247, according to #7228
- rename multiarch docker to sonic-slave-${distro}-march-${arch}
Co-authored-by: Xianghong Gu <xgu@centecnetworks.com>
Co-authored-by: Shi Lei <shil@centecnetworks.com>
