ARM: dts: msm: Introduce bus topology for SDMMAGPIE

Bus topology is the representation of bus connections
in SOC and is required for the bus driver to serve the
bandwidth requests from clients.

Change-Id: I8463059376d9eaac65824403df748078f06c07e2
Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>