arm64: defconfig: Build SM6115 display and GPU clock controller drivers

Enable the clock controllers required for a good visual experience
on Qualcomm SM6115 platform boards.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
[vzapolskiy: minimal changes to a commit message]
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230601075650.1437184-6-vladimir.zapolskiy@linaro.org