[sdn_tests]:Adding Ethernet Counter SubInterface In-IPV6-Discards Check test to pins_ondatra.

[VSuryaprasad-HCL]

Description of PR

• [sdn_tests]:Adding Ethernet Counter SubInterface In-IPV6-Discards Check test to pins_ondatra.

Summary:

• Adding Ethernet Counter SubInterface In-IPV6-Discards Check test to pins_ondatra.

Build Result:

  INFO: From Generating Descriptor Set proto_library @com_github_openconfig_gnsi//acctz:acctz_proto:
  github.com/openconfig/gnsi/acctz/acctz.proto:36:1: 
  warning: Import github.com/openconfig/gnsi/version/version.proto is unused.
  INFO: Elapsed time: 571.170s, Critical Path: 187.74s
  INFO: 975 processes: 251 internal, 724 linux-sandbox.
  INFO: Build completed successfully, 975 total actions

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• [-] Test case(new/improvement)

Back port request

• 201911
• 202012
• 202205
• 202305
• 202311

Approach

What is the motivation for this PR?

How did you do it?

How did you verify/test it?

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation