ARM: dts: msm: Add debugcc support for SDM660

Add the Debug Clock Controller for measuring the clocks
on SDM660.

Change-Id: I4f4bd6e7f9fa1fe7913423cdfa4da17eb0d8e9bc
Signed-off-by: Chetan C R <cchinnad@codeaurora.org>
Signed-off-by: Ashok Raj D <adeenada@codeaurora.org>