vhost: add log when setting vring base
vhost: add log when setting vring base

This patch adds log for vring related info in handling of vhost message
VHOST_USER_SET_VRING_BASE, which will be useful in live migration case.

Signed-off-by: Andy Pei <495968cb2b3cf2ab5bd53dc54ba9a3450dc45709@intel.com>
Reviewed-by: Chenbo Xia <5d298a4585cd22ca5d29de25967a5599c4c324c8@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk