By Ayeesha Walsh Cillian Murphy stepped out to the Oscars accompanied by his rarely seen wife Yvonne McGuiness as they celebrated his Best Actor success. Cillian made history at the 96th Academy Awards in Los Angeles last night as he became the first Irish-born star to win the Best Actor Oscar. Hailing from Cork, Cillian, 47, was seen embracing his wife, 51, and sharing a tender kiss and gazing into each other’s eyes before he headed to the stage to collect his award for his role in box office smash Oppenheimer. The movie won big on the night collecting an incredible seven awards with Cillian’…