staging: lustre: constify lprocfs_generic_fops structure

lprocfs_generic_fops, of type struct file_operations, is never modified, so
declare it as const.

Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/obdclass/lprocfs_status.c

@@ -315,7 +315,7 @@ struct dentry *ldebugfs_add_simple(struct dentry *root,
 }
 EXPORT_SYMBOL_GPL(ldebugfs_add_simple);
 
-static struct file_operations lprocfs_generic_fops = { };
+static const struct file_operations lprocfs_generic_fops = { };
 
 int ldebugfs_add_vars(struct dentry *parent,
 		      struct lprocfs_vars *list,