control: mapped_floor: use setFloorHold

Start using Zone::setFloorHold() in the MappedFloor action.  This way
other actions, or other instances of this action, can also set the floor
without worrying about undercutting each other.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Ie55341d183894819b72819ad58a4a786a7ffb405
1 file changed