By Humeyra Pamuk and Andrea Shalal MADRID (Reuters) – The Biden administration threw its support on Wednesday behind the potential sale of F-16 fighter jets to Turkey, a day after Ankara lifted a veto of NATO membership for Finland and Sweden. Speaking at a briefing call, Celeste Wallander, Assistant Secretary for Defense for International Security Affairs at Pentagon, told reporters that strong Turkish defense capabilities would reinforce NATO’s defenses. “The United States supports Turkey’s modernization of its fighter fleet because that is a contribution to NATO security and therefore Ameri…