!338 Fix virtio-gpu free issues

Merge Pull Request from: @wu-binfeng 
 
This PR is to backport upstream fix for virtio-gpu free issues on probe failure

issues:
First appearance in stratovirt test as a guest：
issue number：I66GGJ
Corresponding Kernel Issue
issue number：I688N6 
 
Link:https://gitee.com/openeuler/kernel/pulls/338

 

Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: Kevin Zhu <zhukeqian1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>