ALSA: hda: intel-sdw-acpi: add missing include files

We rely on implicit includes, list out explicitly what this code
relies on.
Suggested-by: NGuennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: NKai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: NGuennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: NBard Liao <bard.liao@intel.com>
Acked-by: NMark Brown <broonie@kernel.org>
Acked-by: NVinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20210302003125.1178419-8-pierre-louis.bossart@linux.intel.comSigned-off-by: NTakashi Iwai <tiwai@suse.de>

sound/hda/intel-sdw-acpi.c

@@ -6,7 +6,12 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/bits.h>
+#include <linux/bitfield.h>
+#include <linux/device.h>
+#include <linux/errno.h>
 #include <linux/export.h>
+#include <linux/fwnode.h>
 #include <linux/module.h>
 #include <linux/soundwire/sdw_intel.h>
 #include <linux/string.h>