[VOL-4395] (Part of) Added support to enable/disable per-test voltha logging in bbsim based periodic job

Change-Id: I1fafbe7812d45ff38d0b8bcaee11a41a76b8994d
diff --git a/tests/software-upgrades/Voltha_ComponentsUpgrade.robot b/tests/software-upgrades/Voltha_ComponentsUpgrade.robot
index c3ef8aa..820515a 100755
--- a/tests/software-upgrades/Voltha_ComponentsUpgrade.robot
+++ b/tests/software-upgrades/Voltha_ComponentsUpgrade.robot
@@ -57,6 +57,10 @@
 
 ${suppressaddsubscriber}    True
 
+# logging flag to enable Voltha Components Logging, can be passed via the command line too
+# example: -v logging:False
+${logging}    True
+
 # Voltha Components to Test for Software Upgrade need to be passed in the following variable in format:
 # <comp-label>,<comp-container>,<comp-image>*<comp-label>,<comp-container>,<comp-image>*
 # Example: adapter-open-olt,adapter-open-olt,voltha/voltha-openolt-adapter:3.1.3*