[S390] constify function pointer tables.

Signed-off-by: Jan Engelhardt <[e-mail]>
Signed-off-by: Martin Schwidefsky <[e-mail]>

arch/s390/crypto/prng.c

···
 	return ret;
 }
 
-static struct file_operations prng_fops = {
+static const struct file_operations prng_fops = {
 	.owner		= THIS_MODULE,
 	.open		= &prng_open,
 	.release	= NULL,

arch/s390/kernel/setup.c

···
 static void c_stop(struct seq_file *m, void *v)
 {
 }
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,

drivers/s390/block/dasd_proc.c

···
 {
 }
 
-static struct seq_operations dasd_devices_seq_ops = {
+static const struct seq_operations dasd_devices_seq_ops = {
 	.start		= dasd_devices_start,
 	.next		= dasd_devices_next,
 	.stop		= dasd_devices_stop,

drivers/s390/char/tape_proc.c

···
 {
 }
 
-static struct seq_operations tape_proc_seq = {
+static const struct seq_operations tape_proc_seq = {
 	.start		= tape_proc_start,
 	.next		= tape_proc_next,
 	.stop		= tape_proc_stop,

drivers/s390/char/vmur.c

···
 	return newpos;
 }
 
-static struct file_operations ur_fops = {
+static const struct file_operations ur_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = ur_open,
 	.release = ur_release,

drivers/s390/char/zcore.c

···
 	return rc;
 }
 
-static struct file_operations zcore_fops = {
+static const struct file_operations zcore_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= zcore_lseek,
 	.read		= zcore_read,

drivers/s390/cio/blacklist.c

···
 	return user_len;
 }
 
-static struct seq_operations cio_ignore_proc_seq_ops = {
+static const struct seq_operations cio_ignore_proc_seq_ops = {
 	.start = cio_ignore_proc_seq_start,
 	.stop  = cio_ignore_proc_seq_stop,
 	.next  = cio_ignore_proc_seq_next,

drivers/s390/net/qeth_proc.c

···
 	return 0;
 }
 
-static struct seq_operations qeth_procfile_seq_ops = {
+static const struct seq_operations qeth_procfile_seq_ops = {
 	.start = qeth_procfile_seq_start,
 	.stop  = qeth_procfile_seq_stop,
 	.next  = qeth_procfile_seq_next,
···
 	return 0;
 }
 
-static struct seq_operations qeth_perf_procfile_seq_ops = {
+static const struct seq_operations qeth_perf_procfile_seq_ops = {
 	.start = qeth_procfile_seq_start,
 	.stop  = qeth_procfile_seq_stop,
 	.next  = qeth_procfile_seq_next,