re: 8.99.41 panic in nvm_poll

[matthew green <mrg%eterna.com.au@localhost>]

i have a change in testing that makes nvme mostly attach after interrupts
happen.  i need it on arm64 where the interrupt controller isn't setup
properly yet and attemtping to setup affinity doesn't work.

i wonder if this would help here, since nvm_poll() would be called later.

unfortunately, i didn't get interrupts yet so i haven't posted the 
nvme_attach change for review.  i'll try to do that soon.


.mrg.