drm/i915: Pass dev_priv to intel_shared_dpll_init()

Stop passing around the drm_device and just pass the
dev_priv instead.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220325123205.22140-3-ville.syrjala@linux.intel.com


Reviewed-by: Jani Nikula <jani.nikula@intel.com>