|WARNING| [v1,2/2] app/testpmd: mask VLAN inner type when specified

[dpdklab at iol.unh.edu]

Test-Label: ai-code-review
Test-Status: WARNING
https://dpdk.org/patch/165494

_AI Code Review_

Error: API error: {'type': 'api_error', 'message': 'Internal server error'}