ASoC: Intel: Skylake: Enable firmware reload in suspend

Broxton DSP needs retains code loaded during runtime_pm cycles.
But it looses that on suspend cycle, so on resume we need to
download the firmware again.

This is done by adding a new flag and based on flag status, we
download the firmware.

Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/skl-sst.c

@@ -153,6 +153,7 @@ static int skl_load_base_firmware(struct sst_dsp *ctx)
 
 		dev_dbg(ctx->dev, "Download firmware successful%d\n", ret);
 		skl_dsp_set_state_locked(ctx, SKL_DSP_RUNNING);
+		skl->fw_loaded = true;
 	}
 	return 0;
 transfer_firmware_failed: