Revert "openvpn: normalize config directory"
Revert "openvpn: normalize config directory"

This reverts commit 9f0afc672d87b116eb433905dbb7d2468c447600.

The meta-nilrt vpn recipe was previously only intended to support
`nilrt-nxg`. It now supports only `nilrt`, where safemode, and the
configfs, exists.

Revert to using the niconfig partition to coordinate openvpn
configuration between safemode and runmode.

Signed-off-by: Alex Stewart <04cdb2793e4fb0120cc30d1c823099f3862701f4@ni.com>

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