ARM: dts: msm: Add smcinvoke node for SM8150

Current SMCInvoke based framework supports communication between TZ
and HLOS where objects are owned by TZ i.e. services are provided
by TZ. However, if TZ needs a service from Linux, it has to invoke
operation on an object owned by Linux. Such objects are called
local objects which could be either callabck objects or memory objects.
Callback objects provide services such as operations on a file. Memory
objects provide large memory sharing facility between TZ and Linux.
Adding smcinvoke node to support local objects.

Change-Id: I0a9905ad84828a1707401c122bc3076b913dafdc
Signed-off-by: Dinesh K Garg <dineshg@codeaurora.org>