dpp-nfc: Update debug print for tag-read-only operation

Be clearer about only a tag read being allowed when dpp-nfc is
configured to not allow connection handover.

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

wpa_supplicant/examples/dpp-nfc.py

@@ -810,6 +810,9 @@ def main():
             clear_raw_mode()
             if was_in_raw_mode:
                 print("\r")
+            if args.tag_read_only:
+                summary("Waiting for a tag to be touched")
+            else:
                 summary("Waiting for a tag or peer to be touched")
             wait_connection = True
             try: