Bug#816852: flashplugin-nonfree: missing gnupg2 dependency

[Ivan Vilata i Balaguer]

Package: flashplugin-nonfree
Version: 1:3.6.1+b1
Followup-For: Bug #816852

I support this change, it makes more difficult to transition to GnuPGv2.  Is
there any actual dependency on GnuPGv1 only?