[FIX] payment: make the error handler works for non s2s acquirer

Before this commit, error handling would not work for non s2s payment acquirer
since it would always check for `o_payment_add_token_acq_[id]` in the DOM but
this is only present for s2s acquirer.
Non s2s acquirer got `o_payment_form_acq_[id]` in the DOM.

Now, we retrieve the correct DOM element depending if s2s is enabled for this
payment acquirer or not.

task-1825701