RDMA/core: device: Fix formatting in worthy kernel-doc header and demote another

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

 drivers/infiniband/core/device.c:1896: warning: Function parameter or member 'ibdev' not described in 'ib_get_client_nl_info'
 drivers/infiniband/core/device.c:1896: warning: Function parameter or member 'client_name' not described in 'ib_get_client_nl_info'
 drivers/infiniband/core/device.c:1896: warning: Function parameter or member 'res' not described in 'ib_get_client_nl_info'
 drivers/infiniband/core/device.c:2328: warning: Function parameter or member 'nldev_cb' not described in 'ib_enum_all_devs'
 drivers/infiniband/core/device.c:2328: warning: Function parameter or member 'skb' not described in 'ib_enum_all_devs'

Link: https://lore.kernel.org/r/20210118223929.512175-3-lee.jones@linaro.org
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
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/device.c

@@ -1887,9 +1887,9 @@ static int __ib_get_client_nl_info(struct ib_device *ibdev,
 
 /**
  * ib_get_client_nl_info - Fetch the nl_info from a client
- * @device - IB device
- * @client_name - Name of the client
- * @res - Result of the query
+ * @ibdev: IB device
+ * @client_name: Name of the client
+ * @res: Result of the query
  */
 int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name,
 			  struct ib_client_nl_info *res)
@@ -2317,7 +2317,7 @@ void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
 	up_read(&devices_rwsem);
 }
 
-/**
+/*
  * ib_enum_all_devs - enumerate all ib_devices
  * @cb: Callback to call for each found ib_device
  *