Resize userdata on OP6

We'll probably want to do that for other devices as well
But this requires /data to be available at that time.
That's probably true only for FBE devices, not FDE.
Also, we might not want to do that on all devices
So for the moment, do it only on OP6

rw-system.sh

@@ -66,3 +66,7 @@ if getprop ro.hardware |grep -qF qcom && [ -f /sys/class/backlight/panel0-backli
         grep -qvE '^255$' /sys/class/backlight/panel0-backlight/max_brightness;then
     setprop persist.sys.qcom-brightness $(cat /sys/class/backlight/panel0-backlight/max_brightness)
 fi
+
+if [ "$(getprop ro.vendor.product.device)" == "OnePlus6" ];then
+	resize2fs /dev/block/platform/soc/1d84000.ufshc/by-name/userdata
+fi