rockchip: arm: use 'arch-rockchip' for common header

rockchip platform header file is in 'arch-rockchip'
instead of arch-$(SOC) for all SoCs.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S
index fe52166..ecee9e3 100644
--- a/arch/arm/cpu/armv8/start.S
+++ b/arch/arm/cpu/armv8/start.S
@@ -26,7 +26,11 @@
  * order to boot, allow them to set that in their boot0.h file and then
  * use it here.
  */
+#ifdef CONFIG_ARCH_ROCKCHIP
+#include <asm/arch-rockchip/boot0.h>
+#else
 #include <asm/arch/boot0.h>
+#endif
 #else
 	b	reset
 #endif