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/misc/fsl_portals.c b/drivers/misc/fsl_portals.c
index 45eed22..632430e 100644
--- a/drivers/misc/fsl_portals.c
+++ b/drivers/misc/fsl_portals.c
@@ -5,6 +5,7 @@
  */
 
 #include <common.h>
+#include <log.h>
 #include <linux/libfdt.h>
 #include <fdt_support.h>