Alexander Motin 7019329c1a Add Subsystem ID field to the quirk table. Use it to identify Mac Pro 1,1,
which requires OVREF to be set to get proper playback volume, but which has
all zeroes in HDA controller subdevice IDs on PCI.

MFC after:	1 month
Sponsored by:
2013-03-27 07:30:08 +00:00
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2013-03-16 17:57:00 +00:00