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).
Previously, this extra rule was needed to grant regular users
permissions for the embedded display's backlight. It no longer seems to
be necessary; the presence of this rule is currently a no-op.
Someone else on IRC has tested removing the rule and also confirms this
new behaviour. I suspect this was fixed upstream in eudev.
ALSA UCM configs are now upstreamed which causes
a conflict with the device package as both are now
providing the same files. Drop our configs in the device package.
