drm/msm: switch msm_kms to use msm_iommu_disp_new()

Switch msm_kms to use msm_iommu_disp_new() so that the newly
registered fault handler will kick-in during any mmu faults.

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/638360/
Link: https://lore.kernel.org/r/20250219-abhinavk-smmu-fault-handler-v3-4-aa3f0bf4434a@quicinc.com


Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>