Add attribute POST_PREREL to ECC memory POST

Signed-off-by: Larry Johnson <lrj@acm.org>
diff --git a/post/tests.c b/post/tests.c
index 0c49e32..698f85c 100644
--- a/post/tests.c
+++ b/post/tests.c
@@ -241,8 +241,8 @@
     {
 	"ECC test",
 	"ecc",
-	"This test checks ECC facility of memory.",
-	POST_ROM | POST_ALWAYS,
+	"This test checks the ECC facility of memory.",
+	POST_ROM | POST_ALWAYS | POST_PREREL,
 	&ecc_post_test,
 	NULL,
 	NULL,