Revert "Generate random mac address when virtual mac address is zero."

[adrianchiris]

Reverts #325

• There should be acceptance from more than one company according to organization policy
• There are still concerns for this PR which i have.
  • pensando is not officially supported so why are we adding WA for this ?
  • why isnt mac addresss set in driver ?
  • if it is deemed un-nessecary for pensando kenrel folks then this perhaps should be handled in a vendor plugin and not in main code. this requires further discussion

[github-actions]

Thanks for your PR,
To run vendors CIs use one of:

• /test-all: To run all tests for all vendors.
• /test-e2e-all: To run all E2E tests for all vendors.
• /test-e2e-nvidia-all: To run all E2E tests for NVIDIA vendor.

To skip the vendors CIs use one of:

• /skip-all: To skip all tests for all vendors.
• /skip-e2e-all: To skip all E2E tests for all vendors.
• /skip-e2e-nvidia-all: To skip all E2E tests for NVIDIA vendor.
  Best regards.

[bn222]

/lgtm

[adrianchiris]

@vrindle please re-propose the original PR and lets have further discussion on it

1. follow this doc to add support for pensando to begin with : https://github.com/k8snetworkplumbingwg/sriov-network-operator/blob/master/doc/supported-hardware.md
2. re propose PR for the WA with pensando driver