docker: make fragment standalone
docker: make fragment standalone

Importing the docker configuratino fragment from meta-overc, which
adds options and capabilities to allow container to start out of
the box.

Note: There are more options that could be added here, but many of
them are decision of the distro and depend on runtime configuration
choices. So to balance the size of the build and leave decisions
where they belong, we keep this as small as possible.

Signed-off-by: Bruce Ashfield <284cc737d174a260eec2a2a6324a304f84b1ae0f@windriver.com>

lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization