dpp-nfc: Start handover server regardless of init-on-touch setting

dpp-nfc: Start handover server regardless of init-on-touch setting

The previous version was trying to force the handover roles based on the
--init-on-touch parameter on both sides. That is fine for some test
scenarios, but not appropriate for more normal use cases. Change this
design to enable handover server in all cases and only control starting
of the handover client based on --init-on-touch.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>