Wirelessly posted (BlackBerry8530/5.0.0.601 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)

Yes, HNL is considered within North America for AA's award purposes. But to get a stopover in HNL on a LAX-SGN award, the "over-water" carrier would have to have a published, through fare between LAX and SGN, and the rules of that fare would have to permit a routing via HNL. That's how AA works it on international awards involving partner carriers.