mpc5121: pdm360ng: add coprocessor POST

Adds coprocessor communication POST code

Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/include/post.h b/include/post.h
index ff83bce..3da959d 100644
--- a/include/post.h
+++ b/include/post.h
@@ -124,6 +124,7 @@
 #define CONFIG_SYS_POST_BSPEC4		0x00080000
 #define CONFIG_SYS_POST_BSPEC5		0x00100000
 #define CONFIG_SYS_POST_CODEC		0x00200000
+#define CONFIG_SYS_POST_COPROC		0x00400000
 
 #endif /* CONFIG_POST */