ARM: dts: msm: Add sensor clock controller device for SA6155/SA6155p

The application processor owns the sensor clocks on SA6155/SA6155p.
Therefore, add a sensor clock controller device so that client
devices can utilize sensor clocks.

Change-Id: I503565c7b8617d04e769cc4c0c0f386e2bef6b89
Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>