media: Staging: atomisp: constify driver_attribute

driver_attribute are not supposed to change at runtime.
Functions driver_create_file/driver_remove_file are working with
const driver_attribute. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/atomisp/pci/atomisp2/atomisp_drvfs.c

@@ -162,7 +162,7 @@ static ssize_t iunit_dbgopt_store(struct device_driver *drv, const char *buf,
 	return size;
 }
 
-static struct driver_attribute iunit_drvfs_attrs[] = {
+static const struct driver_attribute iunit_drvfs_attrs[] = {
 	__ATTR(dbglvl, 0644, iunit_dbglvl_show, iunit_dbglvl_store),
 	__ATTR(dbgfun, 0644, iunit_dbgfun_show, iunit_dbgfun_store),
 	__ATTR(dbgopt, 0644, iunit_dbgopt_show, iunit_dbgopt_store),