Create new boardfile for find5 display

    Done by copying board-8064-display.c and manually applying oppo
    changes

    TODO:  Fix up Makefiles to actually use this.
Create new boardfile for find5 gpiomux

Done by copying board-8064-gpiomux.c and manually applying oppo
changes

TODO:  Fix up Makefiles to actually use this.
TODO2:  Cleanup.  Probably a lot of extra code no longer needed.