cherry-pick patchs list:
2ab8dba5 qemuDomainGetUnplugTimeout: Add G_GNUC_NO_INLINE
423664a6 virNetDevSwitchdevFeature: Make failure to get 'family_id' non-fatal
ca616274 virNetDevGetFamilyId: Change signature
67b973b5 qemuDomainDefPostParse: Fail if unable to fill machine type
67e19fc9 qemu: Revoke access to mirror on failed blockcopy
93b15ba0 qemu: fix hang in p2p + xbzrle compression + parallel migration
a13ac587 util: fix iteration in virSocketAddrResolveService
88011ed2 libxl: fix crash when initializing driver
Signed-off-by: AlexChen <alex.chen@huawei.com>
