drm/i915/tgl/pll: Set update_active_dpll

Commit 24a7bfe0 ("drm/i915: Keep the TypeC port mode fixed when the
port is active") added this new hook while in parallel TGL upstream was
happening and this was missed.

Without this driver will crash when TC DDI is added and driver is
preparing to do a full modeset.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Clinton A Taylor <clinton.a.taylor@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190920205810.211048-4-jose.souza@intel.com

drivers/gpu/drm/i915/display/intel_dpll_mgr.c

@@ -3479,6 +3479,7 @@ static const struct intel_dpll_mgr tgl_pll_mgr = {
 	.dpll_info = tgl_plls,
 	.get_dplls = icl_get_dplls,
 	.put_dplls = icl_put_dplls,
+	.update_active_dpll = icl_update_active_dpll,
 	.dump_hw_state = icl_dump_hw_state,
 };