arm-smmu bindings snapshot from msm-6.1 branch
commit 0285b5bf8b6f ("Merge "ARM: dts: msm: Update proxy device
settings"").
Update documentation format to yaml.
Change-Id: If9c8d42c214f5587ba2c3ffbde41b518e724f2df
Signed-off-by: Patrick Daly <quic_pdaly@quicinc.com>