I'm using Samsung Galaxy S5 for AT&T with Android 5.0. When I run a game which runs on landscape mode, the default rotation is the top of the screen goes left and the bottom is right. If I rotate the phone, then I can change the direction so that the bottom side of the phone becomes left and top-side to be right. But I want to set the default so that bottom is left and top is right. How can I do this?