5255 uts shouldn't open-code ISP2

*** 1534,1544 ****
          /*
           * The cache attributes are mutually exclusive. Any combination of
           * the attributes leads to a failure.
           */
          uint_t cache_attr = IOMEM_CACHE_ATTR(flags);
!         if ((cache_attr != 0) && ((cache_attr & (cache_attr - 1)) != 0))
                  return (B_FALSE);
  
          /* All cache attributes are supported on X86/X64 */
          if (cache_attr & (IOMEM_DATA_UNCACHED | IOMEM_DATA_CACHED |
              IOMEM_DATA_UC_WR_COMBINE))
--- 1534,1544 ----
          /*
           * The cache attributes are mutually exclusive. Any combination of
           * the attributes leads to a failure.
           */
          uint_t cache_attr = IOMEM_CACHE_ATTR(flags);
!         if ((cache_attr != 0) && !ISP2(cache_attr))
                  return (B_FALSE);
  
          /* All cache attributes are supported on X86/X64 */
          if (cache_attr & (IOMEM_DATA_UNCACHED | IOMEM_DATA_CACHED |
              IOMEM_DATA_UC_WR_COMBINE))
*** 1625,1636 ****
          if (length == 0 || kaddrp == NULL || attr == NULL) {
                  return (DDI_FAILURE);
          }
  
          if (attr->dma_attr_minxfer == 0 || attr->dma_attr_align == 0 ||
!             (attr->dma_attr_align & (attr->dma_attr_align - 1)) ||
!             (attr->dma_attr_minxfer & (attr->dma_attr_minxfer - 1))) {
                          return (DDI_FAILURE);
          }
  
          /*
           * figure out most restrictive alignment requirement
--- 1625,1635 ----
          if (length == 0 || kaddrp == NULL || attr == NULL) {
                  return (DDI_FAILURE);
          }
  
          if (attr->dma_attr_minxfer == 0 || attr->dma_attr_align == 0 ||
!             !ISP2(attr->dma_attr_align) || !ISP2(attr->dma_attr_minxfer)) {
                  return (DDI_FAILURE);
          }
  
          /*
           * figure out most restrictive alignment requirement