allwinner: Add H616 SoC ID

Change-Id: I557fd05401e24204952135cf3ca26479a43ad1f1
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/plat/allwinner/common/include/sunxi_def.h b/plat/allwinner/common/include/sunxi_def.h
index 73c4453..f036816 100644
--- a/plat/allwinner/common/include/sunxi_def.h
+++ b/plat/allwinner/common/include/sunxi_def.h
@@ -17,5 +17,6 @@
 #define SUNXI_SOC_A64			0x1689
 #define SUNXI_SOC_H5			0x1718
 #define SUNXI_SOC_H6			0x1728
+#define SUNXI_SOC_H616			0x1823
 
 #endif /* SUNXI_DEF_H */