linux-phytec-ti

ALSA: hda - Embed struct hda_bus_unsolicited into struct hda_bus

There is no big merit to handle hda_bus_unsolicited object
individually, as it's tightly coupled with the hda_bus object itself.
Embedding it makes the code simpler in the end.

Signed-off-by: Takashi Iwai <tiwai@suse.de>