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/nds32/cpu/n1213/ag101/timer.c b/arch/nds32/cpu/n1213/ag101/timer.c
index c595856..8208b6d 100644
--- a/arch/nds32/cpu/n1213/ag101/timer.c
+++ b/arch/nds32/cpu/n1213/ag101/timer.c
@@ -11,6 +11,7 @@
 #include <common.h>
 #include <init.h>
 #include <irq_func.h>
+#include <log.h>
 #include <time.h>
 #include <asm/io.h>
 #include <faraday/fttmr010.h>