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/cmd/tpm_test.c b/cmd/tpm_test.c
index a6a4636..ebfb25c 100644
--- a/cmd/tpm_test.c
+++ b/cmd/tpm_test.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <command.h>
 #include <cpu_func.h>
+#include <log.h>
 #include <tpm-v1.h>
 #include "tpm-user-utils.h"