Avieon Terrell has long followed in the footsteps of his older brother, A.J. Now, they will finally stand side by side. The Terrell brothers were reunited Friday night when the Falcons selected Avieon — a 21-year-old cornerback from Clemson — with the 48th overall pick of the 2026 NFL Draft.  A.J., 27, who was also a star cornerback at Clemson, is entering his seventh season in Atlanta, and was selected No. 16 overall by the Falcons in the 2020 NFL Draft. Follow The Post’s live updates from the 2026 NFL Draft with news, analysis and reaction. When the announcement was made, the brothers embraced, surrounded by family at their private gathering. Their age difference prevented them from playing together at Clemson and Atlanta’s Westlake High School, but the Terrells will now become the first brothers in the NFL to play in the same secondary since Devin and Jason McCourty each suited up with the Patriots (2018-20). Before the draft, A.J.…