main/linux-postmarketos-allwinner: update to v6.7.4
Tested PinePhone 1.2b - both cameras (Megapixels), call audio (earpiece and speaker), SMS, wifi, mobile data, USB networking, suspend.
Tested PinePhone 1.2b - both cameras (Megapixels), call audio (earpiece and speaker), SMS, wifi, mobile data, USB networking, suspend.