Managers ID : Introduced variable to declare Managers ID in resource.robot and updated all the scripts in openbmc-test-automation

Changes:
    - Introduced ${MANAGER_ID} variable in resource.robot
    - Replaced all the Managers/bmc to Managers/${MANAGER_ID} across all the scripts
    - Also in data/variables.py updated chassis id for the few redfish uri.

Tested:
     - Ran All The Scripts Successfully

Change-Id: Iff3673aae27657e0799dec5cb94c1651a0cd5d18
Signed-off-by: ganesanb <ganesanb@ami.com>
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot b/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
index 3b42faf..fdba6ae 100644
--- a/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
+++ b/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
@@ -56,7 +56,7 @@
     ${validate_errs}=  Shell Cmd  cat validate_errs
     Log  ${validate_errs}
 
-    # URL /redfish/v1/Managers/bmc strip the last ending string and save off
+    # URL /redfish/v1/Managers/${MANAGER_ID} strip the last ending string and save off
     # the logs for debugging "validate_errs_AccountService" and move to logs/.
     Run Keyword If  ${status} == ${False}
     ...  Shell Cmd  mv validate_errs logs/validate_errs_${url.rsplit("/")[-1]}