You can't use a credit card directly, but every casino has a kind of ATM machine where you can request an advance. The trouble is that you have to pay a really high commission to the service, plus a cash advance fee for your card. IIRC, your advance will cost more than 10%. Considering that all casion bets, with the exception of skilled blackjack and poke players, have negative expectations, I don't think it's a good idea to use your credit card.

BTW, considering that you can get a week at the Waikaloa Village for 175k HHonors points, the gaming chip redemption is a complete rip-off. Of course, the redemption for Hawaii used to be 100k points. I had 95k when it switched to 175k...