Some packages installed on your system have broken upgrade path from Oracle
Linux version 6 to version 7 (the version of package is lower in
newer Oracle Linux).

This does not cause fail of redhat-upgrade-tool run and it could
potentially left system in inconsistent state (mixed OL 6 and OL 7
packages installed).  Pre-upgrade scripts makes best effort to force
redhat-upgrade-tool in-place upgrade process install packages with broken
upgrade path but you should be aware of that and know what is happening.

Optionally, if possible, you may remove packages in question from OL 6
system.
