ASoC: amd: acp70: add HP OmniBook X Flip 14 SoundWire machine

Describe the SoundWire topology of the HP OmniBook X Flip 14-kc0xxx
(board 8EA1): two TAS2783 smart amplifiers aggregated on link 0 (unique
IDs 0xC and 0x9, group_position 0 and 1, name prefixes tas2783-1 and
tas2783-2) driving the left and right internal speakers, and an RT712-VB
on link 1 providing the headset jack on AIF1 and the internal DMIC array
on AIF3. The RT712 amplifier path (AIF2) is left unused because the
speakers are driven by the external TAS2783 pair, so the existing
jack_dmic_endpoints array describes it exactly.

The entry is gated on snd_soc_acpi_amd_sdca_is_device_rt712_vb() so it
does not capture a board carrying a different link 1 codec.

Developed with AI assistance. The assistant derived the link topology
from the enumerated peripherals and drafted the table entry. The order
of the two amplifier entries, which is what assigns the physical sides,
was corrected after a listening test by the submitter.

All hardware measurements quoted above were run by the submitter on the
affected machine. The submitter has reviewed the change, understands it
and takes responsibility for it.

Assisted-by: Claude:claude-opus-5
Signed-off-by: Ville Saarinen <wiza@saarinenkoti.fi>
Link: https://patch.msgid.link/20260809101439.4798-3-wiza@saarinenkoti.fi
Signed-off-by: Mark Brown <broonie@kernel.org>

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