Caught running ASAN.
The device name was leaked on scan.
rte_device name field being a const, use a local pointer and release
in error path.
Fixes: 831dba47bd ("bus/vmbus: add Hyper-V virtual bus support")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Long Li <longli@microsoft.com>