Tyga and Blac Chynagave each other a nice Christmas gift this year. BC — who now goes by her legal name Angela White — has settled her bitter custody battle with her ex — and they both came out winners, RadarOnline.comcan reveal. White and the Taste singer, 34, will share joint legal and physical custody of their 11-year-old son, King Cairo. Tyga won’t have to pay a dime to White in child support despite her claiming she needed a monthly stipend from her ex because she was barely making ends meet. Sources connected to the situation told TMZ that White and Tyga agreed on an amicable custody sch…