Fix Playlist layout

vlc-android/res/layout/audio_player.xml

@@ -139,7 +139,7 @@
 
         <android.support.v7.widget.RecyclerView
             android:id="@+id/songs_list"
-            style="@style/PlaylistStyle"
+            android:layout_width="@dimen/playlist_width"
             android:layout_height="match_parent"
             android:clipToPadding="false"
             android:layout_gravity="center_horizontal"

vlc-android/res/values-sw600dp/styles.xml → vlc-android/res/values-w800dp/dimens.xml

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- Playlist-->
-
-    <style name="PlaylistStyle">
-        <item name="android:layout_width">800dp</item>
-    </style>
+    <dimen name="playlist_width">800dp</dimen>
 </resources>
\ No newline at end of file

vlc-android/res/values/dimens.xml

@@ -46,6 +46,8 @@
     <!-- -1px is fill/match_parent -->
     <dimen name="file_picker_height">-1px</dimen>
 
+    <dimen name="playlist_width">-1px</dimen>
+
 
     <!-- Default -->
     <dimen name="default_margin">16dp</dimen>

vlc-android/res/values/styles.xml

@@ -256,10 +256,4 @@
     <style name="TipsFontStyle.Small" parent="TipsFontStyle">
       <item name="android:textSize">10sp</item>
     </style>
-
-    <!-- Playlist-->
-
-    <style name="PlaylistStyle">
-      <item name="android:layout_width">match_parent</item>
-    </style>
 </resources>