Add device: Sony Xperia XZ Premium DSDS

Change-Id: I1f175664a736b2ae34a81c6193be81b6d859ae88
diff --git a/_sony/sonyxperiaxzpremiumdsds.markdown b/_sony/sonyxperiaxzpremiumdsds.markdown
new file mode 100644
index 0000000..c080ffd
--- /dev/null
+++ b/_sony/sonyxperiaxzpremiumdsds.markdown
@@ -0,0 +1,20 @@
+---
+layout: device
+title:  "Sony Xperia XZ Premium DSDS"
+codename: maple_dsds
+downloadfolder: maple_dsds
+supportstatus: Current
+maintainer: cryptomilk & derfelot
+devicetree: "https://github.com/TeamWin/android_device_sony_maple_dsds.git"
+oem: Sony
+---
+
+{% include disclaimer.html %}
+
+{% include supportstatus.html %}
+
+{% include download.html %}
+
+{% include twrpinstall.html %}
+
+{% include fastbootinstall.html %}