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/drivers/net/sandbox-raw.c b/drivers/net/sandbox-raw.c
index 3707ee3..4bd94c3 100644
--- a/drivers/net/sandbox-raw.c
+++ b/drivers/net/sandbox-raw.c
@@ -6,6 +6,7 @@
  * Joe Hershberger <joe.hershberger@ni.com>
  */
 
+#include <log.h>
 #include <asm/eth-raw-os.h>
 #include <common.h>
 #include <dm.h>