(Reuters) - British drinks group Diageo (DGE.L) wants to double its liquor sales in the Middle East and North Africa region over the next five years, as part of a focus on new emerging markets.Diageo, which makes Johnnie Walker whisky and Smirnoff vodka, said liquor sales in the MENA region grew 16 percent this year. Gulf Arab countries contributed 44 percent of the sales, the company told reporters at a media gathering on Monday.