devices: Update Sony Fusion3 markdowns

 * Change maintainer
 * Add/update XDA threads
 * Update device trees

Change-Id: I9635cde0812c4b337ed03528e809891aba83d810
diff --git a/_sony/sonyxperiatabletzwifi.markdown b/_sony/sonyxperiatabletzwifi.markdown
new file mode 100644
index 0000000..20d36bd
--- /dev/null
+++ b/_sony/sonyxperiatabletzwifi.markdown
@@ -0,0 +1,26 @@
+---
+layout: device
+title:  "Sony Xperia Tablet Z Wi-Fi"
+codename: pollux_windy
+downloadfolder: pollux_windy
+supportstatus: Current
+maintainer: CyberWalkMaN
+devicetree: https://github.com/TeamWin/android_device_sony_pollux_windy.git
+oem: Sony
+ddof: "/dev/block/platform/msm_sdcc.1/by-name/FOTAKernel"
+xdathread: "https://forum.xda-developers.com/xperia-tablet-z/orig-development/ub-twrp-v3-2-1-xperia-tablet-z-t3735110"
+---
+
+{% include disclaimer.html %}
+
+{% include supportstatus.html %}
+
+{% include fotakernelnote.html %}
+
+{% include appinstall.html %}
+
+{% include download.html %}
+
+{% include twrpinstall.html %}
+
+{% include ddinstall.html %}