rockchip: dts: rk3399-puma: Add DDR3-1600 timings and use for Puma

With the validation done for DDR3-1600 (i.e. 800 MHz bus clock), we
add the timings (rk3399-sdram-ddr3-1600.dtsi) and change rk3399-puma.dts
to use these by default.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Simon Glass <sjg@chromium.org>
Drop blank line at end of file:
Signed-off-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/rk3399-puma.dts

@@ -7,12 +7,16 @@
 /dts-v1/;
 #include <dt-bindings/pwm/pwm.h>
 #include "rk3399.dtsi"
-#include "rk3399-sdram-ddr3-1333.dtsi"
+#include "rk3399-sdram-ddr3-1600.dtsi"
 
 / {
 	model = "Theobroma Systems RK3399-Q7 SoM";
 	compatible = "tsd,puma", "rockchip,rk3399";
 
+	config {
+	        u-boot,spl-payload-offset = <204800>;
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 		u-boot,spl-boot-order = &spiflash, &sdhci, &sdmmc;