powerpc: Add const to bin_attribute structures

Declare bin_attribute structures as const as they are only passed as an
argument to the function sysfs_create_bin_file. This argument is of
type const, so declare the structure as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/powernv/opal-flash.c

@@ -520,7 +520,7 @@ static ssize_t image_data_write(struct file *filp, struct kobject *kobj,
  *   update_flash	: Flash new firmware image
  *
  */
-static struct bin_attribute image_data_attr = {
+static const struct bin_attribute image_data_attr = {
 	.attr = {.name = "image", .mode = 0200},
 	.size = MAX_IMAGE_SIZE,	/* Limit image size */
 	.write = image_data_write,

arch/powerpc/sysdev/mv64x60_pci.c

@@ -70,7 +70,7 @@ static ssize_t mv64x60_hs_reg_write(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
-static struct bin_attribute mv64x60_hs_reg_attr = { /* Hotswap register */
+static const struct bin_attribute mv64x60_hs_reg_attr = { /* Hotswap register */
 	.attr = {
 		.name = "hs_reg",
 		.mode = S_IRUGO | S_IWUSR,