Revert "octeon_ep_vf: add octeon_ep_vf driver"

This reverts commit c902ba32.
This reverts commit 50648968.
This reverts commit 77cef1e0.
This reverts commit 8f8d322b.
This reverts commit 6ca7b548.
This reverts commit db468f92.
This reverts commit 5f8c64c2.
This reverts commit ebdc193b.

The driver needs more work.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>