recovery: Fix scrolling when touch is rotated

void RecoveryUI::OnTouchTrack() {

  if (touch_pos_.y() <= gr_fb_height_real()) {

    while (abs(touch_pos_.y() - touch_track_.y()) >= MenuItemHeight()) {

      int dy = touch_pos_.y() - touch_track_.y();

    const double scaleX = static_cast<double>(touch_pos_.x()) / gr_fb_width_real();

    const double scaleY = static_cast<double>(touch_pos_.y()) / gr_fb_height_real();

    Point point;

    switch (gr_touch_rotation()) {

      case GRRotation::NONE:

        point.x(gr_fb_width_real() * scaleX);

        point.y(gr_fb_height_real() * scaleY);

        break;

      case GRRotation::RIGHT:

        point.x(gr_fb_width_real() * scaleY);

        point.y(gr_fb_height_real() - (gr_fb_height_real() * scaleX));

        break;

      case GRRotation::DOWN:

        point.x(gr_fb_width_real() - (gr_fb_width_real() * scaleX));

        point.y(gr_fb_height_real() - (gr_fb_height_real() * scaleY));

        break;

      case GRRotation::LEFT:

        point.x(gr_fb_width_real() - (gr_fb_width_real() * scaleY));

        point.y(gr_fb_height_real() * scaleX);

        break;

    }

    while (abs(point.y() - touch_track_.y()) >= MenuItemHeight()) {

      int dy = point.y() - touch_track_.y();

      int key = (dy < 0) ? KEY_SCROLLDOWN : KEY_SCROLLUP;

      ProcessKey(key, 1);  // press key

      ProcessKey(key, 0);  // and release it