spec: specify all config files

Pure configuration files has 'noreplace' flag. XML configuration files
do not have 'noreplace' flag because these files are not intended to be
modified by users.

Related to rhbz#875260

Signed-off-by: Jakub Filak <jfilak@redhat.com>
Signed-off-by: Jiri Moskovcak <jmoskovc@redhat.com>