drm: i2c: sil164: constify i2c_device_id

i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <[e-mail]>
Signed-off-by: Daniel Vetter <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i2c/sil164_drv.c

···
 	return 0;
 }
 
-static struct i2c_device_id sil164_ids[] = {
+static const struct i2c_device_id sil164_ids[] = {
 	{ "sil164", 0 },
 	{ }
 };