d8d1d7a6fa
specfs version of the same ops. Merging with phk's dev_t changes is not yet complete. i.e. devfs still uses it's own devsw pointer rather than following devsw(a_vp->v_rdev), and it's own copy of the dev_t. This fixes some broken actions re: syscons and DEVFS due to bitrot in devfs vops.