HSD #14015549956: arm64: dts: agilex5: Add SMMU node

commit 990cd5e0ea28f22f1ce84851f8a26af4f1cb6cab from
https://github.com/altera-opensource/linux-socfpga.git

 socfpga-6.1.55-lts.

Add SMMU node in Agilex5 device tree.

Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@intel.com>
Signed-off-by: Liwei Song <liwei.song@windriver.com>