Add config MBEDTLS_SSL_SESSION_CACHE

Add configuration option MBEDTLS_SSL_SESSION_CACHE to control
enabling/disabling of the cache based session resumption.
diff --git a/programs/ssl/query_config.c b/programs/ssl/query_config.c
index d45a663..30b9d79 100644
--- a/programs/ssl/query_config.c
+++ b/programs/ssl/query_config.c
@@ -1410,6 +1410,14 @@
     }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
+#if defined(MBEDTLS_SSL_SESSION_CACHE)
+    if( strcmp( "MBEDTLS_SSL_SESSION_CACHE", config ) == 0 )
+    {
+        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_SESSION_CACHE );
+        return( 0 );
+    }
+#endif /* MBEDTLS_SSL_SESSION_CACHE */
+
 #if defined(MBEDTLS_SSL_EXPORT_KEYS)
     if( strcmp( "MBEDTLS_SSL_EXPORT_KEYS", config ) == 0 )
     {