ASoC: SOF: Intel: hda-ctrl: apply symmetry for DPIB

we use 'bus->use_posbuf && bus->posbuf.addr' in
hda_dsp_ctrl_init_chip(), use the same for hda_dsp_ctrl_stop_chip()

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20211207193947.71080-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/hda-ctrl.c

@@ -353,7 +353,7 @@ void hda_dsp_ctrl_stop_chip(struct snd_sof_dev *sdev)
 	snd_hdac_bus_stop_cmd_io(bus);
 #endif
 	/* disable position buffer */
-	if (bus->posbuf.addr) {
+	if (bus->use_posbuf && bus->posbuf.addr) {
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
 				  SOF_HDA_ADSP_DPLBASE, 0);
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,