* Saudi Arabia, Egypt hit fresh six-year highs * Saudi banks rise after Fed interest rate comment * Market shrugs off restrictive foreign ownership rules * Egyptian stocks up on strong Q2 results * Qatar retreats from record high By Olzhas Auyezov DUBAI, Aug 24 (Reuters) - Saudi Arabia's banking stocks, poised to benefit from the expected increase of interest rates in the United States, continued to boost the kingdom's market on Sunday, while property developers buoyed Egypt's bourse. The main Saudi index rose 1.6 percent to 10,903 points, a level last seen in January 2008. ...