AFAIK, it's up to the goodwill of the hotel. If I were you, I would ask the hotel and, if they say no, ask them whether you can pay an additional fee on the 2nd room to "upgrade" it to a room with club access. This, instead of booking directly a different room category for the 2nd room as it would mean 2 different bookings, so you'll loose the benefit of earning points for the 2nd room.