common: Try lazy umount after 8 tries
common: Try lazy umount after 8 tries

clean_mount_points handle virtual filesystem, we can try lazy umount
after 8 tries.

enovance/edeploy,redhat-cip/edeploy,enovance/edeploy,lebauce/edeploy,lebauce/edeploy,lebauce/edeploy,redhat-cip/edeploy,lebauce/edeploy,enovance/edeploy,enovance/edeploy,redhat-cip/edeploy,redhat-cip/edeploy