clk: qcom: dispcc-sm8250: Disable link_div_clk_src for sm8150

SM8150 does not have any of the link_div_clk_src clocks, so
let's disable them for this SoC.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221102090140.965450-6-robert.foss@linaro.org