Adding mpls gre decap test cases

[vishnureddybadveli]

Adding decap sub test cases.

[OpenConfigBot]

Pull Request Functional Test Report for #3742 / af9fb91

Virtual Devices

Device	Test	Test Documentation	Job	Raw Log
Arista cEOS		PF-1.7: Decapsulate MPLS in GRE and UDP
Cisco 8000E		PF-1.7: Decapsulate MPLS in GRE and UDP
Cisco XRd		PF-1.7: Decapsulate MPLS in GRE and UDP
Juniper ncPTX		PF-1.7: Decapsulate MPLS in GRE and UDP
Nokia SR Linux		PF-1.7: Decapsulate MPLS in GRE and UDP
Openconfig Lemming		PF-1.7: Decapsulate MPLS in GRE and UDP

Hardware Devices

Device	Test	Test Documentation	Raw Log
Arista 7808		PF-1.7: Decapsulate MPLS in GRE and UDP
Cisco 8808		PF-1.7: Decapsulate MPLS in GRE and UDP
Juniper PTX10008		PF-1.7: Decapsulate MPLS in GRE and UDP
Nokia 7250 IXR-10e		PF-1.7: Decapsulate MPLS in GRE and UDP

Help

[github-actions]

Pull Request Test Coverage Report for Build 13149482381

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 7 of 24 (29.17%) changed or added relevant lines in 2 files are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.04%) to 18.282%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/deviations/deviations.go	0	3	0.0%
proto/metadata_go_proto/metadata.pb.go	7	21	33.33%

Files with Coverage Reduction	New Missed Lines	%
proto/metadata_go_proto/metadata.pb.go	3	5.56%

Totals
Change from base Build 13082900633:	0.04%
Covered Lines:	2481
Relevant Lines:	13571

---

💛 - Coveralls