RDMA/efa: Mask access flags with the correct optional range

The uapi value IB_UVERBS_ACCESS_OPTIONAL_RANGE shouldn't be used inside
the driver, use IB_ACCESS_OPTIONAL instead.

Fixes: 86dd738c ("RDMA/efa: Allow passing of optional access flags for MR registration")
Link: https://lore.kernel.org/r/20200129071803.40117-1-galpress@amazon.comSigned-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/efa/efa_verbs.c

@@ -1367,7 +1367,7 @@ struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
 		IB_ACCESS_LOCAL_WRITE |
 		(is_rdma_read_cap(dev) ? IB_ACCESS_REMOTE_READ : 0);
 
-	access_flags &= ~IB_UVERBS_ACCESS_OPTIONAL_RANGE;
+	access_flags &= ~IB_ACCESS_OPTIONAL;
 	if (access_flags & ~supp_access_flags) {
 		ibdev_dbg(&dev->ibdev,
 			  "Unsupported access flags[%#x], supported[%#x]\n",