Blackfin: move CONFIG_BFIN_CPU back to board config.h

This is a revert of 821ad16fa9900c as Wolfgang doesn't like the new code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/include/configs/ip04.h b/include/configs/ip04.h
index 528363c..c024d78 100644
--- a/include/configs/ip04.h
+++ b/include/configs/ip04.h
@@ -20,6 +20,7 @@
 /*
  * Processor Settings
  */
+#define CONFIG_BFIN_CPU             bf532-0.5
 #define CONFIG_BFIN_BOOT_MODE       BFIN_BOOT_NAND