rockchip/rk3288: Fix includes for <soc/clock.h>

This header uses common types and macros so it needs to include the
headers that provide those itself.

Change-Id: Ieceb0deadbeef8ddbbb00b13542b78f8def4072d
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/23559
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/soc/rockchip/rk3288/include/soc/clock.h

@@ -17,6 +17,7 @@
 #define __SOC_ROCKCHIP_RK3288_CLOCK_H__
 
 #include <soc/addressmap.h>
+#include <types.h>
 
 #define OSC_HZ		(24*MHz)