msm: mink: Fix clock refcounting

SMCInvoke driver has incorrect logic to update refcount for clocks
that is disabling clocks incorrectly. Updating logic to have correct
behaviour.

Change-Id: I7beadbc39c4d858473aaf9a85ce2e41ec61b5385
Signed-off-by: Dinesh K Garg <dineshg@codeaurora.org>