[Android] Add the copyright header to some Java source files that were lacking them.

Source/Android/src/org/dolphinemu/dolphinemu/emulation/overlay/InputOverlay.java

@@ -1,3 +1,9 @@
+/**
+ * Copyright 2013 Dolphin Emulator Project
+ * Licensed under GPLv2
+ * Refer to the license.txt file included.
+ */
+
 package org.dolphinemu.dolphinemu.emulation.overlay;
 
 import java.util.HashSet;

Source/Android/src/org/dolphinemu/dolphinemu/settings/custom/UpdatingListPreference.java

@@ -1,3 +1,9 @@
+/**
+ * Copyright 2013 Dolphin Emulator Project
+ * Licensed under GPLv2
+ * Refer to the license.txt file included.
+ */
+
 package org.dolphinemu.dolphinemu.settings.custom;
 
 import android.content.Context;