iommu/arm-smmu: Correct sid to mask

From code "SMR mask 0x%x out of range for SMMU", so, we need to use mask, not
sid.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>