main: Set the OCI vc package logger
main: Set the OCI vc package logger

In order to merge the virtcontainers OCI package logs with
the rest of the cc-runtime ones.

Fixes #934

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

chavafg/runtime,clearcontainers/runtime,devimc/runtime,chavafg/runtime,devimc/runtime,clearcontainers/runtime