Add missing dependency on "same seed" test case

The test case passes even if the two clients have different RNG seeds, but
in that case, it doesn't do what it claims, but instead it duplicates the
"2 successive clients, TLS 1.3" test case above. So run
"2 successive clients with same seed, TLS 1.3" only when there is no entropy,
like "2 successive clients with same seed, TLS 1.3".

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

Author: gilles-peskine-arm

tests/opt-testcases/sample.sh

@@ -248,6 +248,9 @@ run_test    "Sample: ssl_fork_server, 2 successive clients with same seed, TLS 1
             -C "error" \
             -v 'distinct_server_random'
 
+requires_config_enabled MBEDTLS_ENTROPY_NO_SOURCES_OK
+requires_config_disabled MBEDTLS_PSA_BUILTIN_GET_ENTROPY
+requires_config_disabled MBEDTLS_PSA_DRIVER_GET_ENTROPY
 run_test    "Sample: ssl_fork_server, 2 successive clients with same seed, TLS 1.3: unique random" \
             -P 4433 \
             "server_with_own_seedfile $PROGRAMS_DIR/ssl_fork_server" \