cpufreq: qcom: Add support for performance lock feature

In the case where the 'qcom,perf-lock-support' feature is enabled the
memory region bases would be required to be provided from the device
node. Any DCVS request requires the shared memory region to be updated
before the cpufreq-hw perf desired register is updated.

Change-Id: I16d068d3311edf8e32654ab29070d4721a7c1493
Signed-off-by: Taniya Das <tdas@codeaurora.org>