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/broadwell/lpc.c b/arch/x86/cpu/broadwell/lpc.c
index 9dc9b63..5669a02 100644
--- a/arch/x86/cpu/broadwell/lpc.c
+++ b/arch/x86/cpu/broadwell/lpc.c
@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <log.h>
 #include <pch.h>
 #include <asm/intel_regs.h>
 #include <asm/io.h>