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/pci/pci_gt64120.c b/drivers/pci/pci_gt64120.c
index 62f213d..80f11fe 100644
--- a/drivers/pci/pci_gt64120.c
+++ b/drivers/pci/pci_gt64120.c
@@ -11,6 +11,7 @@
 #include <common.h>
 #include <gt64120.h>
 #include <init.h>
+#include <log.h>
 #include <pci.h>
 #include <pci_gt64120.h>