clk: qcom: Add camera clock controller driver for SM8250

Add support for the camera clock controller found on SM8250.

Based on the downstream driver.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://lore.kernel.org/r/20210609022051.2171-4-jonathan@marek.ca


[sboyd@kernel.org: Add UL to avoid decimal problems]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>