drm/i915: pass dev_priv explicitly to GLK_TVIDEO_DIP_DRM_DATA

Avoid the implicit dev_priv local variable use, and pass dev_priv
explicitly to the GLK_TVIDEO_DIP_DRM_DATA register macro.

Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bab2d0385b748c34bec262afaf491be881990033.1716808214.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>