prefs: add hardware acceleration preference

enable by default on Android TV

Change-Id: Ic7650354c42fb6a1082842f9c837be5b39ca6508
diff --git a/ring-android/libringclient/src/main/java/cx/ring/model/Settings.java b/ring-android/libringclient/src/main/java/cx/ring/model/Settings.java
index 0d90f23..5df68c5 100644
--- a/ring-android/libringclient/src/main/java/cx/ring/model/Settings.java
+++ b/ring-android/libringclient/src/main/java/cx/ring/model/Settings.java
@@ -27,6 +27,7 @@
     private boolean mAllowPlaceSystemCalls;
     private boolean mAllowRingOnStartup;
     private boolean mHdUpload;
+    private boolean mHwEncoding;
 
     public Settings() {
     }
@@ -87,6 +88,14 @@
         mHdUpload = hd;
     }
 
+    public void setHwEncoding(boolean hw) {
+        mHwEncoding = hw;
+    }
+
+    public boolean isHwEncoding() {
+        return mHwEncoding;
+    }
+
     public void setAllowPersistentNotification(boolean checked) {
         this.mAllowPersistentNotification = checked;
     }