5255 uts shouldn't open-code ISP2

*** 3764,3774 ****
           * perform word loads and stores on it).
           */
          if (align < KMEM_ALIGN)
                  cflags |= KMC_NOTOUCH;
  
!         if ((align & (align - 1)) != 0 || align > vmp->vm_quantum)
                  panic("kmem_cache_create: bad alignment %lu", align);
  
          mutex_enter(&kmem_flags_lock);
          if (kmem_flags & KMF_RANDOMIZE)
                  kmem_flags = (((kmem_flags | ~KMF_RANDOM) + 1) & KMF_RANDOM) |
--- 3764,3774 ----
           * perform word loads and stores on it).
           */
          if (align < KMEM_ALIGN)
                  cflags |= KMC_NOTOUCH;
  
!         if (!ISP2(align) || align > vmp->vm_quantum)
                  panic("kmem_cache_create: bad alignment %lu", align);
  
          mutex_enter(&kmem_flags_lock);
          if (kmem_flags & KMF_RANDOMIZE)
                  kmem_flags = (((kmem_flags | ~KMF_RANDOM) + 1) & KMF_RANDOM) |