b530967 Update rhel7.6 to rhel7.7

Authored and Committed by Liping Cheng 4 years ago
    Update rhel7.6 to rhel7.7
    
    Change-Id: I08a15c2a8fce08d1b05504a0a138c20190fed5b9
    Signed-off-by: Junqin Zhou <juzhou@redhat.com>
    Reviewed-on: https://code.engineering.redhat.com/gerrit/181198
    Tested-by: Libvirt Jenkins <libvirt-jenkins@redhat.com>
    Reviewed-by: Liping Cheng <lcheng@redhat.com>
    Signed-off-by: Liping Cheng <lcheng@redhat.com>