drm/xe/display: Add missing watermark ipc update at runtime resume

Continuing the alignment with i915 runtime pm sequence. Add
this missing call.

Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250131115014.29625-1-rodrigo.vivi@intel.com


Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>