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/lib/fsp2/fsp_silicon_init.c b/arch/x86/lib/fsp2/fsp_silicon_init.c
index 28c15a2..45c0c7d 100644
--- a/arch/x86/lib/fsp2/fsp_silicon_init.c
+++ b/arch/x86/lib/fsp2/fsp_silicon_init.c
@@ -12,6 +12,7 @@
 #include <binman.h>
 #include <bootstage.h>
 #include <dm.h>
+#include <log.h>
 #include <asm/arch/fsp/fsp_configs.h>
 #include <asm/arch/fsp/fsp_s_upd.h>
 #include <asm/fsp/fsp_infoheader.h>