buildroot

runc: new package

runC is a CLI tool for spawning and running containers according to the
OCP specification.

runC is used by the latest Docker engine versions, however, runc itself
is standalone and has no other dependencies.

https://runc.io/

Signed-off-by: Christian Stewart <christian@paral.in>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>