initscripts-nilrt: don't error when repopulating config
initscripts-nilrt: don't error when repopulating config

populateconfig may be called a second time in a single boot session
as part of a reformat operation. The certstore symlink is outside the
reformatted partition, and doesn't need to be recreated; check for it
to avoid a error message from ln in error logs.

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

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