drm/panel/panel-tpo-tpg110: Correct misnaming and supply missing param description

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

drivers/gpu/drm/panel/panel-tpo-tpg110.c:94: warning: Function parameter or member 'panel_mode' not described in 'tpg110'
drivers/gpu/drm/panel/panel-tpo-tpg110.c:372: warning: Function parameter or member 'connector' not described in 'tpg110_get_modes'

Cc: Linus Walleij <[e-mail]>
Cc: Thierry Reding <[e-mail]>
Cc: Sam Ravnborg <[e-mail]>
Cc: David Airlie <[e-mail]>
Cc: Daniel Vetter <[e-mail]>
Cc: [e-mail]
Signed-off-by: Lee Jones <[e-mail]>
Signed-off-by: Sam Ravnborg <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/panel/panel-tpo-tpg110.c

···
 	 */
 	struct drm_panel panel;
 	/**
-	 * @panel_type: the panel mode as detected
+	 * @panel_mode: the panel mode as detected
 	 */
 	const struct tpg110_panel_mode *panel_mode;
 	/**
···
 /**
  * tpg110_get_modes() - return the appropriate mode
  * @panel: the panel to get the mode for
+ * @connector: reference to the central DRM connector control structure
  *
  * This currently does not present a forest of modes, instead it
  * presents the mode that is configured for the system under use,