umass regression

[Bartosz Fabianowski]

Replying to myself one last time, the kind of quirk I was thinking of 
actually does exist already. It is called CAM_QUIRK_NORPTLUNS. Enabling 
this quirk fixes the issue for me - both LUNs are detected and two umass 
devices appear.

I submitted a patch in the following PR:

http://www.freebsd.org/cgi/query-pr.cgi?pr=163932

Thanks for the pointers and discussion that led to this solution.

- Bartosz