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/arch/x86/cpu/intel_common/itss.c b/arch/x86/cpu/intel_common/itss.c
index e4f785c..963afa8 100644
--- a/arch/x86/cpu/intel_common/itss.c
+++ b/arch/x86/cpu/intel_common/itss.c
@@ -13,6 +13,7 @@
 #include <dm.h>
 #include <dt-structs.h>
 #include <irq.h>
+#include <log.h>
 #include <malloc.h>
 #include <p2sb.h>
 #include <spl.h>