iommu/amd: Fix precedence order in set_dte_passthrough()

iommu/amd: Fix precedence order in set_dte_passthrough()

Bitwise OR | operator has a higher precedence than the ternary ?:
operatior. It will be incorrectly evaluated as:

new->data[1] |= (FIELD_PREP(...) | dev_data->ats_enabled) ? DTE_FLAG_IOTLB : 0;

Wrap the conditional operation in parentheses to enforce the
correct evaluation order.

Fixes: 93eee2a49c1b ("iommu/amd: Refactor logic to program the host page table in DTE")
Signed-off-by: Weinan Liu <wnliu@google.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>