ELIOT Spitzer's campaign for governor has received a major boost from celebri ties like Barbra Streisand ($1,000), George Steinbrenner ($15,000) and Christie Brinkley ($1,250). The Post's Kenneth Lovett reports Spitzer raised a hefty $10.7 million during the past six months, with contributions also from Don Henley ($10,000), Edward Norton ($15,000), Ben Affleck ($1,000), Jets owner Woody Johnson ($10,000), NBA Com missioner David Stern ($5,000), Ivanka Trump ($1,000), Robert (son of George) Soros ($25,000), John Kerry's stepson Chris Heinz ($1,500), Robert Kennedy Jr. ($200), public relations powerhouse How ard Rubenstein ($11,000), and Laurie David, the activ ist wife of "Seinfeld" co-creator...