ipareplica: Add support for 4.7 (4.6.90-pre2)

With IPA 4.7 bigger changes have been introduced

Changes:
- Use of timeconf and chrony instead of ntpconf and ntpd.
- custodia instance needed for ca and kra
- Use of create_ipa_conf with changed setting in setup_http for install_http,
  reverted back afterwards.

roles/ipareplica/library/ipareplica_prepare.py

@@ -265,7 +265,9 @@ def main():
                 # do not use ensure_enrolled, it uses redirect_output
                 # ensure_enrolled(installer)
 
-                args = [paths.IPA_CLIENT_INSTALL, "--unattended", "--no-ntp"]
+                args = [paths.IPA_CLIENT_INSTALL, "--unattended"]
+                if NUM_VERSION < 40690:
+                    args.append("--no-ntp")
                 stdin = None
                 nolog = []