Rolled vinyl flooring ... on a wall?
Surrounds are rigid for a reason. You're likely to have bulges and edges coming loose just because vinyl flooring is flexible. 

The adhesives designed for vinyl floor are not instant-grab. This means that you'd need to somehow hold the vinyl tight to the wall and perfectly flat for a day or more. You could use panel or contact adhesive, but this means you get one shot to get it right. It's partly for that reason that surround kits are in multiple pieces. I shudder at the thought of installing a three-wall sheet in one motion.

It's not the worst idea ever had, but it's a recipe for a lot of sweating and swearing, and it may not hold up to the test of time as you'd hope.