ARM: dts: msm: Switch to new SMMU devicetree format for CNSS

Add CNSS SMMU devicetree properties. By switching to the new SMMU
devicetree format, device driver framework will automatically
attach an iommu to CNSS PCI device prior to its probe function.
IOMMU configuration will also be read from devicetree.

CRs-Fixed: 2409946
Change-Id: I8d15be6994e57232530d4595ba5f95d3b5a81454
Signed-off-by: Yuanyuan Liu <yuanliu@codeaurora.org>