ARM: dts: msm: update clock_npucc device node for KONA

Update the device tree node for clock_npucc to specify a
functional compatible string instead of dummycc.  This
ensures that consumer requests modify clock hardware state.

Also add a phandle for the clock_npucc node in the debugcc
node so that NPU_CC clock rates can be measured at runtime.

Change-Id: I0d6347b0526dd520697306033dd5dbd4f381e3ba
Signed-off-by: David Collins <collinsd@codeaurora.org>