[Android] Return true upon displaying the exit confirmations dialog in EmulationActivity.java. Now multiple games can be launched like normal. Previously it was returning false.

Source/Android/src/org/dolphinemu/dolphinemu/emulation/EmulationActivity.java

@@ -229,6 +229,7 @@ public final class EmulationActivity extends Activity
 					}
 				});
 				builder.show();
+				return true;
 			}
 
 			default: