Amplify Snack Brands, the producer of SkinnyPop popcorn, crisps and other snacks crisps, has announced that it will acquire UK based crisps and snack maker Tyrrells for £300 million ($390 million). The Amplify deal is the third time Tyrrells has been sold, with the company having first been purchased by Langholm Capital in 2008, followed by private equity firm Investcorp for $130 million in 2013. According to a report in …