fsi: sbefifo: Constify sbefifo_ids

The only usage of sbefifo_ids is to assign its address to the id_table
field in the fsi_driver struct, which is a const pointer, so make it
const to allow the compiler to put it in read-only memory

Signed-off-by: Rikard Falkeborn <[e-mail]>
Signed-off-by: Joel Stanley <[e-mail]>

drivers/fsi/fsi-sbefifo.c

···
 	return 0;
 }
 
-static struct fsi_device_id sbefifo_ids[] = {
+static const struct fsi_device_id sbefifo_ids[] = {
 	{
 		.engine_type = FSI_ENGID_SBE,
 		.version = FSI_VERSION_ANY,