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_rom.c b/drivers/pci/pci_rom.c
index 2f3d40c..6a9bc49 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -28,6 +28,7 @@
 #include <dm.h>
 #include <errno.h>
 #include <init.h>
+#include <log.h>
 #include <malloc.h>
 #include <pci.h>
 #include <pci_rom.h>