RDMA/efa: Add EFA 0xefa1 PCI ID

Add support for 0xefa1 devices.

Link: https://lore.kernel.org/r/20200722140312.3651-5-galpress@amazon.com


Reviewed-by: Shadi Ammouri <sammouri@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>