[BUG] ASUS TUF Gaming A14 2026 (FA401EA) - No internal audio (ACP70 no ASoC machine driver)

### Pre-flight checklist - [x] I have searched existing issues and this is not a duplicate. - [x] I have read the [Contributing Guidelines](https://github.com/CachyOS/linux-cachyos/blob/master/CONTRIBUTING.md). - [x] I have verified the issue is reproducible with the latest available CachyOS kernel. - [x] I have tried to reproduce the issue on Arch Linux's `linux` kernel. ### Upstream / vanilla kernel check I have not tested with a vanilla/upstream kernel ### Kernel variant linux-cachyos (EEVDF, Clang) ### System information (cachyos-bugreport.sh) ```text https://paste.cachyos.org/p/fa3b3ae.log ``` ### Manual system information (if cachyos-bugreport.sh is unavailable) ```text ``` ### Bug description ## Root cause analysis The ACP 7.0 audio coprocessor is detected (`acp_asoc_acp70.0`) but no ASoC machine driver quirk exists for the FA401EA board in the kernel. The internal speakers use a TAS2783 SmartAmp amplifier over SoundWire, which requires both a DMI quirk in the ACP70 machine driver and TAS2783 firmware blobs. A similar fix was merged for the ASUS ProArt PX13 (HN7306EA) in kernel 7.0 (commit: ASoC: amd: acp: PX13 ACP70 config and machine quirks), but FA401EA has not yet received the equivalent quirk. **Related issues:** - https://bbs.archlinux.org/viewtopic.php?pid=2298802 - https://discussion.fedoraproject.org/t/need-a-driver-missing-kernel-module-for-the-amd-acp70-audio-controller/188539 - https://github.com/CachyOS/linux-cachyos/issues/737 (PX13, same chip) ### Steps to reproduce 1. Try listening to any audio file ### Expected behavior Internal speakers and microphone should work, similar to the ASUS ProArt PX13 with the same ACP70/TAS2783 hardware. ### Actual behavior No internal audio device detected. Only HDMI audio available. ### Logs / stack traces ```text ``` ### Additional system information _No response_