clk: qcom: add SM8150 sensor clock controller driver

Add a sensor clock controller (SCC) driver which can be used to
control sensor clocks on boards in which the application
processor owns these clocks (e.g. SA8155).

Change-Id: I2e3460a6e432a8248c03ed1d777f849eadad376a
Signed-off-by: Veera Vegivada <vvegivad@codeaurora.org>