Android: Display disc number instead of company if mulipart disc

Source/Android/app/src/main/res/values/strings.xml

@@ -375,5 +375,6 @@
     <string name="pitch">Total Pitch</string>
     <string name="yaw">Total Yaw</string>
     <string name="vertical_offset">Vertical Offset</string>
+    <string name="disc_number">Disc %1$d</string>
 
 </resources>