Viola Davis plans to “take [herself] out to dinner” if she becomes an EGOT recipient. The 57-year-old actress has won a host of accolades during her career, including an Emmy, an Oscar and two Tony awards – and Viola has now revealed how she’ll celebrate if she completes the EGOT set by winning a Grammy. Viola – who has been nominated for a Grammy for ‘Finding Me: A Memoir’, he self-narrated audiobook – told ‘Entertainment Tonight’: “It is a surreal title to have, and I thought about it, and I thought to myself, ‘If I achieve that, I may take myself out to dinner.’ “And you know, I don’t celeb…