Allow building sysutils/intel-nvmupdate and net/intel-ixl-kmod on 10.1-RELEASE

The packaging cluster is building packages for 10.x on 10.1-RELEASE machine,
so the ports couldn't be built into packages due to IGNORE statement for
1001000 OSVERSION.

Submitted by: Sergey Kozlov <kozlov.sergey.404@gmail.com>
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D6473