This patch adds the infrastructure to update device
tree nodes to convey SMMU stream IDs in the device
tree.  Fixups are implemented for PCI controllers
initially.
Signed-off-by: NStuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: NPrabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>