common: Drop log.h from common header

Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/freescale/p1022ds/diu.c b/board/freescale/p1022ds/diu.c
index 7f72510..918b4b9 100644
--- a/board/freescale/p1022ds/diu.c
+++ b/board/freescale/p1022ds/diu.c
@@ -9,6 +9,7 @@
 #include <common.h>
 #include <clock_legacy.h>
 #include <command.h>
+#include <log.h>
 #include <linux/ctype.h>
 #include <asm/io.h>
 #include <stdio_dev.h>