pinctrl: fix pinconf_ops::pin_config_dbg_parse_modify kerneldoc

The kerneldoc comment for struct pinconf_ops was missing
pin_config_dbg_parse_modify, and instead described
pin_config_group_dbg_set (which is presumably an old name for the same
function). Rename it in the kerneldoc comment so they match.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

include/linux/pinctrl/pinconf.h

@@ -30,7 +30,7 @@ struct seq_file;
  * @pin_config_set: configure an individual pin
  * @pin_config_group_get: get configurations for an entire pin group
  * @pin_config_group_set: configure all pins in a group
- * @pin_config_group_dbg_set: optional debugfs to modify a pin configuration
+ * @pin_config_dbg_parse_modify: optional debugfs to modify a pin configuration
  * @pin_config_dbg_show: optional debugfs display hook that will provide
  *	per-device info for a certain pin in debugfs
  * @pin_config_group_dbg_show: optional debugfs display hook that will provide