ARM: dts: msm: Add TCU nodes and correct QoS params for msm8916

Add the TCU nodes to the bus topology and correct the QoS related params
for the other nodes as this could result in system performance degradation.

Change-Id: I00751704cefc5c3c7b96309e2efb3faea15254ba
Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>