tools: bpftool: add "bpftool map freeze" subcommand

Add a new subcommand to freeze maps from user space.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
3 files changed