Fix minor issue

If initial-config-primitive or config-primitive do not exists, there was
an error.

Change-Id: If43cef7369a5f6d57c99347ba8a4b7b08790d057
Signed-off-by: David Garcia <david.garcia@canonical.com>
(cherry picked from commit 95cc9c5f864ef0d5b78eca278e41a023d7e79281)
1 file changed