The RoCE spec requires RoCE devices to support only the default pkey.
However the bnxt_re driver maintains a 0xFFFF entry pkey table and uses
only the first entry. Remove the pkey table and hard code a table of
length one hard wired with the default pkey.

Link: https://lore.kernel.org/r/20211125033615.483750-1-kamalheib1@gmail.comSigned-off-by: NKamal Heib <kamalheib1@gmail.com>
Reviewed-by: NDevesh Sharma <devesh.s.sharma@oracle.com>
Signed-off-by: NJason Gunthorpe <jgg@nvidia.com>