TOKYO (Reuters) - Former Nissan Motor Co Representative Director Greg Kelly was granted bail by the Tokyo District Court on Tuesday, the court said, raising the prospect he could be freed before the end of Christmas day.Kelly's bail has been set at 70 million yen ($635,612), the court said in a statement.Kelly has been detained along with ousted Nissan Chairman Carlos Ghosn since their arrest on Nov. 19 on suspicion of understating Ghosn's income on several years of financial statements.Public..