By Andrew Gould The Green Bay Packers took a step toward replenishing their wide receiver room by signing Sammy Watkins to a one-year deal on Thursday. ESPN’s Adam Schefter initially said the contract was worth up to $4 million, but the 28-year-old may not earn as much with his new club. ESPN’s Rob Demovsky broke down the contract details Tuesday morning. With $1.85 million total earnings and unconfirmed incentives, the reporter said Watkins is “no lock to make the Packers’ roster.” Ari Meirov of Pro Football Focus said Watkins could reach the initially reported $4 million by earning up to $52…