PORTLAND — Asia Smith scored a basket inside with 2.2 seconds left in regulation to give the Umpqua Community College women’s basketball team a 76-75 Southern Region win over Portland Saturday afternoon. The Riverhawks (17-8, 7-5 South) remained one game in front of Southwestern Oregon for the league’s fourth and final playoff spot with two regular season contests remaining. Shannon Jackson led UCC with 23 points, hitting 11 of 14 shots. She added eight rebounds. Kyndal Charleston contributed 17 points, including five 3-pointers, and Rachel Sample had 16 points, nine rebounds and eight assists. Smith had a double-double with 12 …