percona-mysql-router package should be part of "tools" repo, not "ps-80"

From what I see percona-mysql-router is part of ps-80 repo, but if I want to install PS 5.7 with mysql-router in that case I need to enable ps-80 repo which kind of beats the purpose of having separate repositories per major PS version.

In upstream downloads page mysql-router doesn't seem to be linked to some particular mysql version (looks just like mysql-shell) unlike in our case. From what I see they keep it in tools repo also.