[CopyResourcesScript] add tv target-device for tvOS

TARGETED_DEVICE_FAMILY will be 3) for tvOS.
Without this line we get the following error when running the '[CP] Copy Pods Resources' build phase on tvOS:

```
***-tvOS.storyboard: error: tvOS storyboards do not support target device type "mac".
```

CHANGELOG.md

@@ -48,11 +48,11 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
   [Orta Therox](https://github.com/orta)
   [#6049](https://github.com/CocoaPods/CocoaPods/pull/6049)
 
-
 ##### Bug Fixes
 
-* None.  
-
+* Add target-device tvOS in copy_resources generator.    
+[Konrad Feiler](https://github.com/Bersaelor)
+[#6052](https://github.com/CocoaPods/CocoaPods/issues/6052)
 
 ## 1.1.0.rc.3 (2016-10-11)
 

lib/cocoapods/generator/copy_resources_script.rb

@@ -114,6 +114,9 @@ case "${TARGETED_DEVICE_FAMILY}" in
   2)
     TARGET_DEVICE_ARGS="--target-device ipad"
     ;;
+  3)
+    TARGET_DEVICE_ARGS="--target-device tv"
+    ;;
   *)
     TARGET_DEVICE_ARGS="--target-device mac"
     ;;