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/lib/bch.c b/lib/bch.c
index 8945d8d..de66b1a 100644
--- a/lib/bch.c
+++ b/lib/bch.c
@@ -55,6 +55,7 @@
 
 #ifndef USE_HOSTCC
 #include <common.h>
+#include <log.h>
 #include <malloc.h>
 #include <ubi_uboot.h>
 #include <dm/devres.h>