Make lib/raid6/test build correctly.

Some bit-rot needs to be cleaned out.

Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
index 1cbbd2c..2b59cc8 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -62,7 +62,9 @@
 #define disable_kernel_altivec()
 
 #define EXPORT_SYMBOL(sym)
+#define EXPORT_SYMBOL_GPL(sym)
 #define MODULE_LICENSE(licence)
+#define MODULE_DESCRIPTION(desc)
 #define subsys_initcall(x)
 #define module_exit(x)
 #endif /* __KERNEL__ */