Add pki_share_dbuser_dn for CA

In the future the default value for pki_share_dbuser_dn might
change. To ensure that CA and KRA in IPA will use the same
database user, the pki_share_dbuser_dn needs to be defined
for CA to match the same param for KRA.

Signed-off-by: Endi Sukma Dewata <edewata@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>

install/share/ipaca_default.ini

@@ -130,6 +130,7 @@ pki_audit_signing_nickname=auditSigningCert cert-pki-ca
 pki_audit_signing_subject_dn=cn=CA Audit,%(ipa_subject_base)s
 
 pki_share_db=False
+pki_share_dbuser_dn=uid=pkidbuser,ou=people,o=ipaca
 pki_master_crl_enable=True
 
 pki_default_ocsp_uri=%(ipa_ocsp_uri)s