Charles Barkley wants to pick a fight. When he heard former President Trump insist that Black people now have a strong connection to him because he’s been indicted, and that he’s seen “Black people walking around with my mugshot” on T-shirts, Barkley — the former NBA star and current NBA analyst — promised he’d take matter into his own hands … or fists. “First of all, I’m just gonna say this,” Barkley said on his show, “King Charles,” with Gayle King on CNN, “if I see a black person walking around with Trump mugshot, I’m gonna punch him in the face.” King broke in: “Charles, you can’t say th…