IB/opa_vnic: Spelling correction of 'erorr' to 'error'

Correcting a minor spelling mistake in the comments.

Link: https://lore.kernel.org/r/20200118162542.15188-1-dab9861@gmail.com


Signed-off-by: Dillon Brock <dab9861@gmail.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>