arm64: defconfig: enable SM8450 DISPCC clock driver

Build the Qualcomm SM8450 Display Clock Controller driver as a module

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230127-topic-sm8450-upstream-defconfig-v1-1-93cf603db08b@linaro.org