rockchip: Tidy up board include-file ordering

These board files have inconsistent #include ordering. Fix them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/mach-rockchip/rk3188-board-spl.c b/arch/arm/mach-rockchip/rk3188-board-spl.c
index a5e4d39..5c09b0e 100644
--- a/arch/arm/mach-rockchip/rk3188-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3188-board-spl.c
@@ -12,6 +12,7 @@
 #include <malloc.h>
 #include <ram.h>
 #include <spl.h>
+#include <syscon.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/bootrom.h>
@@ -27,7 +28,6 @@
 #include <dm/test.h>
 #include <dm/util.h>
 #include <power/regulator.h>
-#include <syscon.h>
 
 DECLARE_GLOBAL_DATA_PTR;