msm: clock-8974: Add measurement support for the real Krait clocks

Instead of using dummy clocks, use the real krait clocks for the
measurement table. This automates the disabling of hardware clock gating of
the Krait/L2 clocks while the measurement is being done.

Change-Id: Id7d1a0f687bb503f7d1dbd9eea43ec43eec6e190
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>