arm64: defconfig: enable display clock controller on sm8250

Enable the driver for the display clock controller on Qualcomm SM8250,
needed in order to get the display working. This driver provides
power-domains and as such should not be compiled as a module.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201228151225.4018477-1-dmitry.baryshkov@linaro.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>