Former Ultimate Fighter finalist Michael Johnson is focused on moving up the lightweight rankings in 2012. If everything goes as planned, he‘ll end the year on the cusp of being a contender.The 25-year-old St. Louis native, who has been a part of “The Blackzilians” for the last year, set his sights on a productive and successful year after suffering a first-round submission loss to British leg lock expert Paul Sass back in October. Frustrated with his performance, Johnson sought the silver…