Added possibility to deploy Drivetrain separately from other services

Change-Id: I0deab9a27fd8fbd3e2c6e4b726a387513f9574c1
diff --git a/tcp_tests/tests/system/conftest.py b/tcp_tests/tests/system/conftest.py
index 64288ab..754e0d7 100644
--- a/tcp_tests/tests/system/conftest.py
+++ b/tcp_tests/tests/system/conftest.py
@@ -25,7 +25,7 @@
 from tcp_tests.fixtures.decapod_fixtures import *  # noqa
 from tcp_tests.fixtures.stacklight_fixtures import *  # noqa
 from tcp_tests.fixtures.k8s_fixtures import *  # noqa
-
+from tcp_tests.fixtures.drivetrain_fixtures import *  # noqa
 
 __all__ = sorted([  # sort for documentation
     # common_fixtures
@@ -53,6 +53,9 @@
     'oss_actions',
     'oss_deployed',
     'oss_sl_os_deployed',
+    # drivetrain_fixtures
+    'drivetrain_actions'
+    'drivetrain_deployed'
     # decapod_fixtures
     'decapod_actions',
     'decapod_deployed',