iommu/tegra: smmu: Fix deadly typo

commit d0078e72314df2e5ede03f2102cddde06767c374 upstream.

Fix a deadly typo in macro definition.

Signed-off-by: Hiro Sugawara <hsugawara@nvidia.com>
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>