DRV_NAME is unused, remove it.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Link: https://lore.kernel.org/r/20191108002354.15016-1-iwamatsu@nigauri.orgSigned-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>