For legal-age millennials wanting to upgrade their wine selection without breaking the bank, 7-Eleven Inc. is adding Cherrywood Cellars to its best-selling line-up of proprietary wines. The mid-tier-priced wine ($7.99 – $8.99 per bottle) is available in three varietals – chardonnay, cabernet sauvignon and merlot. “We are targeting millennials because they like convenience and want…