ASoC: SOF: Intel: IPC4: enable IMR boot

IPC4 based firmwares have unconditional support for IMR boot.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220616054910.16690-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

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

@@ -538,7 +538,8 @@ int hda_dsp_post_fw_run(struct snd_sof_dev *sdev)
 
 		/* Check if IMR boot is usable */
 		if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT) &&
-		    sdev->fw_ready.flags & SOF_IPC_INFO_D3_PERSISTENT)
+		    (sdev->fw_ready.flags & SOF_IPC_INFO_D3_PERSISTENT ||
+		     sdev->pdata->ipc_type == SOF_INTEL_IPC4))
 			hdev->imrboot_supported = true;
 	}