fix principal class name

VLC for iOS WatchKit Extension/Info.plist

@@ -33,6 +33,6 @@
 		<string>com.apple.watchkit</string>
 	</dict>
 	<key>RemoteInterfacePrincipalClass</key>
-	<string>InterfaceController</string>
+	<string>VLCPlaylistInterfaceController</string>
 </dict>
 </plist>