freeipa.spec: client: depend on libsss_sudo and sudo

On 10.10+ releases of Dogtag, the PKI installer will not depend
on sudo anymore. This opens the possibility of creating IPA servers
without a properly configured sudo.
In fact, even IPA clients should have sudo and libsss_sudo installed
in most cases, so add a weak dependency on both of them to the client
subpackage.
Also make sure libsss_sudo is installed if sudo is present.

Fixes: https://pagure.io/freeipa/issue/8530
Signed-off-by: François Cami <fcami@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Armando Neto <abiagion@redhat.com>
Reviewed-By: Michal Polovka <mpolovka@redhat.com>

freeipa.spec.in

@@ -635,6 +635,11 @@ Requires: nfs-utils
 Requires: sssd-tools >= %{sssd_version}
 Requires(post): policycoreutils
 
+# https://pagure.io/freeipa/issue/8530
+Recommends: libsss_sudo
+Recommends: sudo
+Requires: (libsss_sudo if sudo)
+
 Provides: %{alt_name}-client = %{version}
 Conflicts: %{alt_name}-client
 Obsoletes: %{alt_name}-client < %{version}