ARM: dts: msm: add remote debugger support on Lito

Add remote debugger device configuration. The Remote Debugger driver
allows a debugger running on a host PC to communicate with a remote
stub running on peripheral subsystems.

Change-Id: Ie7616d8d58e77c3a7690cfd4de83bbfdad4a8190
Acked-by: Devender Kaushik <dkaushik@qti.qualcomm.com>