vcpkg-ports\pkcs11-helper: shorten patch filename

vcpkg-ports\pkcs11-helper: shorten patch filename

"make dist" uses 'tar -o' which breaks on long filenames:

  tar:

openvpn-2.5.6/contrib/vcpkg-ports/pkcs11-helper/0003-config-w32-vc.h.in-ind
icate-OpenSSL-EC-support.patch:
  file name is too long (max 99); not dumped
  tar: Exiting with failure status due to previous errors

and then "make dist" continues.

Make filename shorter to make tar happy.

Signed-off-by: Lev Stipakov <lev@openvpn.net>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20220316135411.217-1-lstipakov@gmail.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg23977.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
(cherry picked from commit 2047522286f179cac09bd7615bf845d67a5dc1c8)