Add test for renegotiation in DTLS

Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
diff --git a/tests/suites/test_suite_ssl.data b/tests/suites/test_suite_ssl.data
index 3113bd4..a99bb6c 100644
--- a/tests/suites/test_suite_ssl.data
+++ b/tests/suites/test_suite_ssl.data
@@ -351,6 +351,15 @@
 Sending app data via DTLS, without MFL and with fragmentation
 send_application_data_dtls:MBEDTLS_SSL_MAX_FRAG_LEN_NONE:16385:100000:0:0
 
+DTLS renegotiation: no legacy renegotiation
+dtls_renegotiation:MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION
+
+DTLS renegotiation: legacy renegotiation
+dtls_renegotiation:MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION
+
+DTLS renegotiation: legacy break handshake
+dtls_renegotiation:MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE
+
 SSL DTLS replay: initial state, seqnum 0
 ssl_dtls_replay:"":"000000000000":0