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 <linus.walleij@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201113134938.4004947-14-lee.jones@linaro.org

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

@@ -76,7 +76,7 @@ struct tpg110 {
 	 */
 	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;
 	/**
@@ -362,6 +362,7 @@ static int tpg110_enable(struct drm_panel *panel)
 /**
  * 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,