Technically, yes, you can. However, why would you want to? By declairing bankrupty, you're already being protected from debtors and will be able to keep your primary residence. The bank is simply looking to cut its losses and wants you to short sell so they can collect something on your house now, instead of allowing you the leniency afforded by being in bankruptcy in the first place!
If you weren't already declaring bankruptcy, a short sale is a better solution allowing your to avoid foreclosure and hugely negative credit hits. However, now that you are declaring bankruptcy, it's a moot point!