[pkg-gnupg-maint] Bug#933713: libgpg-error-dev: make package fit for cross development

[W. Martin Borgert]

Package: libgpg-error-dev
Version: 1.35-1

IMHO, this package could be Multi-Arch: same, and therefore
support cross development easily, if /usr/bin/gpg-error-config
were renamed to /usr/bin/<multiarch_name>-gpg-error-config, e.g.
/usr/bin/arm-linux-gnueabi-gpg-error-config.

This probably needs a symlink for the native platform or similar
to not break existing build processes.