Ally McCoist has revealed he was ‘worried’ about what he would say to Prince William as he was awarded an OBE at Windsor Castle on Wednesday. The former Scotland international was honoured for his services to football and broadcasting with the Prince of Wales handing him his award. McCoist, who won 10 league titles with Rangers in his playing career, was seen beaming from ear-to-ear while in conversation with Prince William. But the 62-year-old has admitted to having some nerves about meeting the heir apparent to the British throne. “I think the fact that we had met before and chatted before w…