hwdb: add database entries for models with OXFW970/971 ASICs

hwdb: add database entries for models with OXFW970/971 ASICs

Once Oxford Semiconductor designed FW970 and FW971 ASICs as Multi-Channel
Isochronous Streaming FireWire Audio Controller. Some vendors used them
in their products for audio and music units.

The content of configuration ROM has standard layout of 1394 Trading
Association with an additional Dependent Information directory.

This commit adds database entries for the known models. ALSA oxfw
driver supports them, but expects userspace application to control them.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>