RDMA/core/roce_gid_mgmt: Fix misnaming of 'rdma_roce_rescan_device()'s param 'ib_dev'

Fixes the following W=1 kernel build warning(s):

 drivers/infiniband/core/roce_gid_mgmt.c:511: warning: Function parameter or member 'ib_dev' not described in 'rdma_roce_rescan_device'
 drivers/infiniband/core/roce_gid_mgmt.c:511: warning: Excess function parameter 'device' description in 'rdma_roce_rescan_device'

Link: https://lore.kernel.org/r/20210118223929.512175-9-lee.jones@linaro.org
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Taehee Yoo <ap420073@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/core/roce_gid_mgmt.c

@@ -505,7 +505,7 @@ static void enum_all_gids_of_dev_cb(struct ib_device *ib_dev,
  * rdma_roce_rescan_device - Rescan all of the network devices in the system
  * and add their gids, as needed, to the relevant RoCE devices.
  *
- * @device:         the rdma device
+ * @ib_dev:         the rdma device
  */
 void rdma_roce_rescan_device(struct ib_device *ib_dev)
 {