ni-systemformat: add symlink in legacy location
ni-systemformat: add symlink in legacy location

This script used to live in /usr/local/natinst/bin and there are
some stragglers that depend on it in that location.

Signed-off-by: Brandon Streiff <13fa32f2726d04b7021cfff7b1046af0e9dba2df@ni.com>

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt