common: Drop init.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-rockchip/rk322x/rk322x.c b/arch/arm/mach-rockchip/rk322x/rk322x.c
index 562117e..ad4ac62 100644
--- a/arch/arm/mach-rockchip/rk322x/rk322x.c
+++ b/arch/arm/mach-rockchip/rk322x/rk322x.c
@@ -2,6 +2,7 @@
 /*
  * (C) Copyright 2019 Rockchip Electronics Co., Ltd
  */
+#include <init.h>
 #include <asm/io.h>
 #include <asm/arch-rockchip/bootrom.h>
 #include <asm/arch-rockchip/grf_rk322x.h>