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/turbo.c b/arch/x86/cpu/turbo.c
index be468d2..f8d85d5 100644
--- a/arch/x86/cpu/turbo.c
+++ b/arch/x86/cpu/turbo.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <log.h>
 #include <asm/cpu.h>
 #include <asm/msr.h>
 #include <asm/processor.h>