Restore same PSK length enforcement

Restore same PSK length enforcement in
conf_psk and set_hs_psk, whether the
negotiated protocol is TLS 1.2 or TLS 1.3.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index b1ee654..6794068 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -13239,7 +13239,7 @@
                              MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED
 run_test    "TLS 1.3: NewSessionTicket: Basic check, G->m" \
             "$P_SRV debug_level=4 crt_file=data_files/server5.crt key_file=data_files/server5.key force_version=tls13 tickets=4" \
-            "$G_NEXT_CLI localhost -d 4 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3 -V -r" \
+            "$G_NEXT_CLI localhost -d 4 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:-AES-256-GCM -V -r" \
             0 \
             -c "Connecting again- trying to resume previous session" \
             -c "NEW SESSION TICKET (4) was received" \