msm: clock-copper: Add support for sdcc voting for pnoc clocks

In copper target, SDCC controllers are connected to pnoc bus.
This change allows SDCC driver to vote for pnoc clocks when
required.

Change-Id: I297a34e11199c889514466e73978ace7efbdcbe4
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>