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/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index cde7c00..7ed3061 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -310,14 +310,14 @@
 	},
 };
 
-static int ecovec24_set_brightness(void *board_data, int brightness)
+static int ecovec24_set_brightness(int brightness)
 {
 	gpio_set_value(GPIO_PTR1, brightness);
 
 	return 0;
 }
 
-static int ecovec24_get_brightness(void *board_data)
+static int ecovec24_get_brightness(void)
 {
 	return gpio_get_value(GPIO_PTR1);
 }