coresight: Add regulator and clock vote for coreisht components

Some coresight components are driven by external regulators and
clocks. Add regulator and clock support in coresight driver so
proper regulators and clocks are voted when components are enabled.

Change-Id: Ida626be977d377c6bfcd3f63c1d6f46cccd4f67c
Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org>