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/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index c4eeb9b..c3c67fc 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <env.h>
 #include <init.h>
+#include <log.h>
 #include <malloc.h>
 #include <asm/fsl_serdes.h>