fbdev: sh_mobile_lcdc: Remove board configuration board_data field

The field is unused, remove it. Update board code accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h
index 163f4b7..62be2c9 100644
--- a/include/video/sh_mobile_lcdc.h
+++ b/include/video/sh_mobile_lcdc.h
@@ -148,15 +148,14 @@
 };
 
 struct sh_mobile_lcdc_board_cfg {
-	void *board_data;
-	int (*setup_sys)(void *board_data, void *sys_ops_handle,
+	int (*setup_sys)(void *sys_ops_handle,
 			 struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
-	void (*start_transfer)(void *board_data, void *sys_ops_handle,
+	void (*start_transfer)(void *sys_ops_handle,
 			       struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
-	void (*display_on)(void *board_data, struct fb_info *info);
-	void (*display_off)(void *board_data);
-	int (*set_brightness)(void *board_data, int brightness);
-	int (*get_brightness)(void *board_data);
+	void (*display_on)(void);
+	void (*display_off)(void);
+	int (*set_brightness)(int brightness);
+	int (*get_brightness)(void);
 };
 
 struct sh_mobile_lcdc_lcd_size_cfg { /* width and height of panel in mm */