linux-ptl: carry working Zenbook S14 audio fixes

[Daetrek]

ASUS Zenbook S14 UX5406AA audio failed on my Omarchy install: SOF could not register the sound card, leaving only Dummy Output. This packages the audio changes from my working custom Linux 7.1.8 setup for linux-ptl, including the effective microphone setting.

• Backport Charles Keepax's merged SoundWire ghost-device fix, preserving its authorship and review trailers. It removes the nonexistent RT722 advertised by the BIOS. The upstream patch also covers Lenovo 83QK/83SF.
• Carry the working CS42L43 plus four-CS35L56 machine layout on links 3 and 1/2. This downstream 7.1.8 workaround comes from the approach discussed in ASoC: soc-acpi-intel-ptl-match: add ptl_cs42l43_agg_l3_cs35l56_l12_ghost_rt722 thesofproject/linux#5754 and No audio on ASUS Zenbook S14 UX5406AA (Panther Lake): sof_sdw fails to create DAI links for cs35l56 thesofproject/linux#5721; it is not a proposal to add new machine tables upstream.
• Set the UX5406AA SSID 1043:1464 quirk to zero. The installed custom kernel added SOC_SDW_CODEC_MIC, but required a later snd_soc_sof_sdw quirk=0 override to expose the built-in microphone. Encoding the effective value for this model avoids requiring that global modprobe setting.
• Add verified SHA-256/BLAKE2 checksums and bump pkgrel to 3.

Related: #90, which carries the earlier Zenbook workaround against an older package base. This PR targets the current 7.1.8 package and includes both the upstream ghost-device fix and the working layout/microphone configuration. These related audio changes are submitted together, separately from keyboard behavior.

Validation:

• My UX5406AA, BIOS UX5406AA.303, has repeatedly booted the custom 7.1.8-arch1-3-ux5406aa kernel with working sound. Current inspection confirms the sof-soundwire card and active quirk=0 override.
• The patched Panther Lake layout file matches the working build byte-for-byte. The machine-driver file differs only in replacing the microphone-excluding quirk with the effective zero override. The upstream ghost patch retains the same ASUS address remap as the working build, with additional upstream Lenovo entries.
• Both audio patches apply without fuzz to pristine 7.1.8; the Arch patch does not alter these files.
• All three changed driver files compile against the configured 7.1.8 kernel tree.
• Kernel checkpatch reports 0 errors and 0 warnings (--no-signoff for the downstream layout patch).
• PKGBUILD syntax, makepkg --printsrcinfo, checksum array lengths, all five local patch checksums, and git diff --check pass.
• Repository self-tests passed during preparation: sync-upstream, sync-rebuilds, omarchy-pkgs, omarchy-release.

The boot evidence is from the installed custom kernel, not a full build/boot of this exact linux-ptl artifact. Moving the microphone override into the SSID table is source-verified and compile-tested, not separately boot-tested. Lenovo models have not been tested here. Existing skip_build: true package policy is unchanged.