MT7927 WiFi on Linux: Making It Work

How I got MediaTek MT7927 WiFi 7 working on Linux by reverse-engineering the MT7927 initialization, DMA ring layout, and firmware quirks - extending the existing mt7925e kernel driver with 18 patches. Now community-tested on 10+ hardware platforms across 2.4/5/6GHz with 320MHz (2+ Gbps), suspend/resume, and ASPM fixes all working. Series submitted to linux-wireless@.