Ensure firmware that will be removed is installed up to the next major balenaOS release

[acostach]

In this commit we add back the removed packages for the following boards:

• RaspberryPi (this image is used on the RPI Zero and RPI Zero W, but not on the RPI Zero 2W)

• RaspberryPi 2

• Raspberrypi0-2w-64

• RaspberryPi 3

• RaspberryPi3-64

• RaspberryPi 4

• RaspberryPi 5

• RPI CM4

• Revpi Connect

• RevPi Connect S

• RevPi Connect 4

  raspberrypi3-unipi-neuron and raspberrypi4-unipi-neuron inherit the Pi3 and Pi4-64 machines

After the meta-balena removal PR will be merged,
a new major balenaOS release can perform the actual removal by setting TEMPORARILY_ALLOWED_PACKAGES = "".

Also, drop setting firmware compression because this already is enabled by default in meta-balena.

Changelog-entry: core/images: Temporarily add back the to-be-removed linux-firmware packages