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: NDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201228151225.4018477-1-dmitry.baryshkov@linaro.orgSigned-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/configs/defconfig

@@ -932,6 +932,7 @@ CONFIG_SM_GCC_8150=y
 CONFIG_SM_GCC_8250=y
 CONFIG_SM_GPUCC_8150=y
 CONFIG_SM_GPUCC_8250=y
+CONFIG_SM_DISPCC_8250=y
 CONFIG_QCOM_HFPLL=y
 CONFIG_HWSPINLOCK=y
 CONFIG_HWSPINLOCK_QCOM=y