msm: pm-8x60: Add clock debug to idle code path.

Clock debug during is suspend is enabled in pm-8x60.
This code has been added to the idle code path to be
able to debug the clocks that are left on and
result in apps not voting for XO during Idle PC.

Change-Id: Ifae4317d58f5a97a91fb40e4d6c236ca4bf1453f
Signed-off-by: Karthik Parsha <kparsha@codeaurora.org>