* U.S. stock prices slide on bets on faster Fed rate hikes* Looming Scottish independence vote unnerves markets* Dollar climbs to six-year peak vs yen* Short-dated U.S. yields approach highest in over 3 years(Updates market action, changes dateline, previous LONDON)By Richard LeongNEW YORK, Sept 10 (Reuters) - U.S. stock prices fell on Wednesday on growing bets the Federal Reserve may raise intere