client-connect: Move multi_client_connect_setenv into early_setup

client-connect: Move multi_client_connect_setenv into early_setup

This patch moves multi_client_connect_setenv into
multi_client_connect_early_setup and makes sure that every client-connect
handling function updates the virtual address selection.

Background: This unifies how the client-connect handling functions work.

Signed-off-by: Fabian Knittel <fabian.knittel@lettink.de>
Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Patch V5: Rebase on master

Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20200711093655.23686-4-arne@rfc2549.org>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg20288.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>