arcmsr: add const to bin_attribute structures

Add const to bin_attribute structures as they are only passed to the
functions system_{remove/create}_bin_file. The arguments passed are of
type const, so declare the structures to be const.

Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/arcmsr/arcmsr_attr.c

@@ -190,7 +190,7 @@ static ssize_t arcmsr_sysfs_iop_message_clear(struct file *filp,
 	return 1;
 }
 
-static struct bin_attribute arcmsr_sysfs_message_read_attr = {
+static const struct bin_attribute arcmsr_sysfs_message_read_attr = {
 	.attr = {
 		.name = "mu_read",
 		.mode = S_IRUSR ,
@@ -199,7 +199,7 @@ static struct bin_attribute arcmsr_sysfs_message_read_attr = {
 	.read = arcmsr_sysfs_iop_message_read,
 };
 
-static struct bin_attribute arcmsr_sysfs_message_write_attr = {
+static const struct bin_attribute arcmsr_sysfs_message_write_attr = {
 	.attr = {
 		.name = "mu_write",
 		.mode = S_IWUSR,
@@ -208,7 +208,7 @@ static struct bin_attribute arcmsr_sysfs_message_write_attr = {
 	.write = arcmsr_sysfs_iop_message_write,
 };
 
-static struct bin_attribute arcmsr_sysfs_message_clear_attr = {
+static const struct bin_attribute arcmsr_sysfs_message_clear_attr = {
 	.attr = {
 		.name = "mu_clear",
 		.mode = S_IWUSR,