Correct relocation fixup for mpc5xx

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/include/common.h b/include/common.h
index d8b6b46..7319c54 100644
--- a/include/common.h
+++ b/include/common.h
@@ -63,6 +63,7 @@
 #endif
 #elif defined(CONFIG_5xx)
 #include <asm/5xx_immap.h>
+#define CONFIG_RELOC_FIXUP_WORKS
 #elif defined(CONFIG_MPC5xxx)
 #include <mpc5xxx.h>
 #elif defined(CONFIG_MPC8220)