media: imx274: fix typo

pd -> pad
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/i2c/imx274.c

@@ -544,7 +544,7 @@ struct imx274_ctrls {
 /*
  * struct stim274 - imx274 device structure
  * @sd: V4L2 subdevice structure
- * @pd: Media pad structure
+ * @pad: Media pad structure
  * @client: Pointer to I2C client
  * @ctrls: imx274 control structure
  * @format: V4L2 media bus frame format structure