video: ARM CLCD: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <[e-mail]>
Cc: Russell King <[e-mail]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[e-mail]>

drivers/video/fbdev/amba-clcd.c

···
 	.init_panel = nomadik_clcd_init_panel,
 };
 
-static struct amba_id clcdfb_id_table[] = {
+static const struct amba_id clcdfb_id_table[] = {
 	{
 		.id	= 0x00041110,
 		.mask	= 0x000ffffe,