Update referrer policy compat data to note some values as standard (#1032)
Update referrer policy compat data to note some values as standard (#1032)

Link to standard: https://www.w3.org/TR/referrer-policy/#referrer-policies
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data,teoli2003/browser-compat-data