examples/vhost: fix build with debug enabled
examples/vhost: fix build with debug enabled

Minor fix for the referring of a pointer when debug and dump is enabled.

Fixes: 72ec8d77ac68 ("examples/vhost: rework duplicated code")

Signed-off-by: Changchun Ouyang <593bf1f161e79772915ea885e47cf0e95f4498c0@intel.com>

venkynv/dpdk-mirror,msune/dpdk,john-mcnamara-intel/dpdk,venkynv/dpdk-mirror,msune/dpdk,tsphillips/dpdk-fork,mixja/dpdk,tsphillips/dpdk-fork,john-mcnamara-intel/dpdk,tsphillips/dpdk-fork,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,venkynv/dpdk-mirror,tsphillips/dpdk-fork,mixja/dpdk,mixja/dpdk,msune/dpdk,venkynv/dpdk-mirror,mixja/dpdk,msune/dpdk