<fix>[vm]: fix get pci address from xml
<fix>[vm]: fix get pci address from xml

Change-Id: I6f796f6d636e6f6b6373716b646f7564797a6374
Signed-off-by: AlanJager <d8cbfc099e345b60b6890e605248d783ee1ec64e@zstack.io>

zstackio/zstack-utility,zstackio/zstack-utility,zstackio/zstack-utility