Enable CODEC POST with CFG_POST_CODEC rather than with CFG_POST_DSP.

Signed-off-by: Dmitry Rakhchev <rda@emcraft.com>
diff --git a/post/tests.c b/post/tests.c
index 698f85c..ed4ef2b 100644
--- a/post/tests.c
+++ b/post/tests.c
@@ -225,7 +225,7 @@
 	CFG_POST_DSP
     },
 #endif
-#if CONFIG_POST & CFG_POST_DSP
+#if CONFIG_POST & CFG_POST_CODEC
     {
 	"CODEC test",
 	"codec",