ARM: dts: msm: Add debugcc clock node for Bengal

Add debug clock controller node to use the debug clock
controller driver for measuring the clocks. Also add
MCCC and CPUCC device and phandle reference to debugcc
to map register space for the apss specific debug mux.

Change-Id: Ib53e1d11e8ecc001215d45fc40a6df560a64f5b5