clk: qcom: debugcc-scuba: Add clock measure support for clk

Add clock measure support for hwkm, qpic, and pka clocks to
measure the frequency. Also remove enable_safe_config flag
from disp_cc_sleep_clk_src as it has only chip_sleep_clk as
a parent.

Change-Id: Ia2172edee75b2603295ed1971e4f6e0934274cbd
Signed-off-by: Naveen Yadav <naveenky@codeaurora.org>