ARM: dts: msm: Add snapshot of bus topology for msm8937

This is a snapshot of the bus topology as of msm-3.18
'commit cc212d6e7308 ("ASoC: bg: Ensure to check vote
for regulator").

Change-Id: Idb62f927142516e63e07ce6605a5eda865b78773
Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>