clk: qcom: clk-alpha-pll: add Rivian EVO PLL configuration interfaces

Add and export Rivian EVO PLL configuration and control functions to
clock controller drivers, the PLL is used by SM8450 camera clock
controller.

Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220701062739.2757912-1-vladimir.zapolskiy@linaro.org