The `firmware-pine64-pinebookpro` predates the firmware for this device
being available upstream. It is now packaged in two separate packages:
linux-firmware-brcm and linux-firmware-rockchip.
Install those two linux-firmware packages and drop the custom one. This
drop a custom firmware package and also ensure that firmware is kept up to
date with the rest of linux-firmware-*.
The resulting installation includes all the previously included firmware
files and I've confirmed that both sound and wifi work fine (dmesg
indicates bluetooth is available too).
Hugo Osvaldo Barrera
1edbf01dcb