Add the const that was accidentally left out from the vtables. Fixes: 6b4cd9cba620 ("drm/i915: constify the cdclk vtable") Cc: Dave Airlie <airlied@redhat.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211021133408.32166-1-jani.nikula@intel.com (cherry picked from commit 877d074939a5f82b099da2db3bcccc6c418b9c39) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>