Fix broken include path in a 'test_boot_acceptance.robot' file

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Change-Id: Ia9ffe025ecdfbfd014afda9508444a53c19a210a
diff --git a/systest/test_boot_acceptance.robot b/systest/test_boot_acceptance.robot
index 5f37528..a56e74e 100644
--- a/systest/test_boot_acceptance.robot
+++ b/systest/test_boot_acceptance.robot
@@ -43,7 +43,7 @@
 Resource        ../lib/resource.robot
 Resource        ../syslib/utils_os.robot
 Resource        ../lib/bmc_network_utils.robot
-Resource        ../../lib/bmc_redfish_resource.robot
+Resource        ../lib/bmc_redfish_resource.robot
 
 Suite Setup     Suite Setup Execution
 Suite Teardown  Collect HTX Log Files