rockchip: move ROCKCHIP_STIMER_BASE to Kconfig

Move ROCKCHIP_STIMER_BASE to Kconfig.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/rk3308/Kconfig b/arch/arm/mach-rockchip/rk3308/Kconfig
index 8fa536e..194353e 100644
--- a/arch/arm/mach-rockchip/rk3308/Kconfig
+++ b/arch/arm/mach-rockchip/rk3308/Kconfig
@@ -8,6 +8,12 @@
        bool "Firefly roc-rk3308-cc"
 	select BOARD_LATE_INIT
 
+config ROCKCHIP_BOOT_MODE_REG
+	default 0xff000500
+
+config ROCKCHIP_STIMER_BASE
+	default 0xff1b00a0
+
 config SYS_SOC
 	default "rk3308"
 
@@ -17,10 +23,6 @@
 config SPL_SERIAL
 	default y
 
-config ROCKCHIP_BOOT_MODE_REG
-	default 0xff000500
-
-
 source "board/rockchip/evb_rk3308/Kconfig"
 source "board/firefly/firefly-rk3308/Kconfig"