dpkg: Install dkpg-perl scripts to versioned perl directory

Install dpkg-perl scripts to versioned perl directory, otherwise the
following traceback happens when running, e.g. dpkg-architecture on the
target:

Can't locate Dpkg.pm in @INC (you may need to install the Dpkg module)
  (@INC contains: /usr/lib/perl5/site_perl/5.30.1/aarch64-linux
  /usr/lib/perl5/site_perl/5.30.1
  /usr/lib/perl5/vendor_perl/5.30.1/aarch64-linux
  /usr/lib/perl5/vendor_perl/5.30.1
  /usr/lib/perl5/5.30.1/aarch64-linux
  /usr/lib/perl5/5.30.1 .) at /usr/bin/dpkg-architecture line 25.

Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Manuel Leonhardt <mleonhardt@arri.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit bdd4757a)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>