Android: add braces to a one-line if block

There isn't an official Java style, but this seems to be consistent with
everything else. Also it's weird to see one one liners without braces in
Java.

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/StartupHandler.java

@@ -17,7 +17,9 @@ public final class StartupHandler
 		String start_file = "";
 		Bundle extras = parent.getIntent().getExtras();
 		if (extras != null)
+		{
 			start_file = extras.getString("AutoStartFile");
+		}
 
 		if (!TextUtils.isEmpty(start_file))
 		{