Use correct conditionals in programs/ssl (fix unused-function errors)

Signed-off-by: Michael Schuster <michael@schuster.ms>
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index 679956c..aa4cf22 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -1376,7 +1376,8 @@
 }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_HAVE_TIME)
+#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_TICKET_C) && \
+    defined(MBEDTLS_HAVE_TIME)
 static inline void put_unaligned_uint32(void *p, uint32_t x)
 {
     memcpy(p, &x, sizeof(x));
@@ -1467,7 +1468,7 @@
 
     return ret;
 }
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_HAVE_TIME */
+#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_TICKET_C && MBEDTLS_HAVE_TIME */
 
 static int parse_cipher(char *buf)
 {
diff --git a/programs/ssl/ssl_test_common_source.c b/programs/ssl/ssl_test_common_source.c
index 98fae36..079b14d 100644
--- a/programs/ssl/ssl_test_common_source.c
+++ b/programs/ssl/ssl_test_common_source.c
@@ -352,6 +352,7 @@
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
+#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
 static void mbedtls_print_supported_sig_algs(void)
 {
     mbedtls_printf("supported signature algorithms:\n");
@@ -373,3 +374,4 @@
     mbedtls_printf("ecdsa_sha1\n");
     mbedtls_printf("\n");
 }
+#endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */