DMTF Tools: Handled DMTF Tools Download If Branch Name Was Different

Changes:

    - Recently, In DMTF Tools website for few of tools repository stable branch name was changed from master to main.
    - Handled Download DMTF Tools keyword, to download dmtf tool from their respective stable branch.

Tested:
     - Ran All The Scripts Successfully

Change-Id: I7d86799051a95df4728bd728a9c90bdbe0107dad
Signed-off-by: ganesanb <ganesanb@ami.com>
diff --git a/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot b/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
index daac8be..3b42faf 100644
--- a/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
+++ b/redfish/dmtf_tools/Redfish_JsonSchema_ResponseValidator.robot
@@ -14,13 +14,15 @@
 ${command_string}  ${DEFAULT_PYTHON} ${rsv_dir_path}${/}Redfish-JsonSchema-ResponseValidator.py
 ...                -r https://${OPENBMC_HOST} -u ${OPENBMC_USERNAME} -p ${OPENBMC_PASSWORD} -S -v
 
+${branch_name}    main
+
 *** Test Case ***
 
 Test BMC Redfish Using Redfish JsonSchema ResponseValidator
     [Documentation]  Check OpenBMC conformance with JsonSchema files at the DMTF site.
     [Tags]  Test_BMC_Redfish_Using_Redfish_JsonSchema_ResponseValidator
 
-    Download DMTF Tool  ${rsv_dir_path}  ${rsv_github_url}
+    Download DMTF Tool  ${rsv_dir_path}  ${rsv_github_url}  ${branch_name}
 
     Redfish.Login
     ${url_list}=  redfish_utils.List Request  /redfish/v1