dt-bindings: display/msm: dp-controller: Correct SM8650 IO range

dt-bindings: display/msm: dp-controller: Correct SM8650 IO range

DP on Qualcomm SM8650 come with nine address ranges, so describe the
remaining ones as optional to keep ABI backwards compatible.  Driver
also does not need them to operate correctly.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/716450/
Link: https://lore.kernel.org/r/20260405-dts-qcom-display-regs-v2-1-34f4024c65dc@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>