A future patch will introduce one more way of getting a reference on a
tagging protocl driver (by name). Rename the current method to "by_id".
Signed-off-by: NVladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>