oci: Fix unit tests
oci: Fix unit tests

The rc4+ OCI specs has moved from a single array of
capabilities to an array of arrays.

Signed-off-by: Samuel Ortiz <0ba86cb3f08bbb861958e54bd3438887adb4263c@linux.intel.com>

wcwxyz/virtcontainers,wcwxyz/virtcontainers,containers/virtcontainers,containers/virtcontainers,wcwxyz/virtcontainers