No audio option for Hifiberry AMP 3 selectable

    Hello,

    this is my first post.

    First of all thank you for this very useful project.

    I copy here the bug I have opened on GitHub (now closed, they say to write it here):

    ### Describe the bug

    I have followed the instructions to add the Hifiberry AMP 3 overlay to get the audio output option in the list to be selected, but I don't see any new option for that.

    The overlay was added in the kernel v5.15.60 of the RaspberryPi (I'm using the RaspberryPi 2).

    ### To Reproduce

    Steps to reproduce the behavior:

    1. Follow these instructions and as overlay use "hifiberry-amp3"

    2. Go to Settings/System/Audio

    3. In the Audio Output device I don't see anything related to the AMP 3, I see 4 entries for ALSA (vc4-hdmi) and one for PULSE (bluetooth audio)


    ### Informations

    - LE Version: [10.95.1]

    - Hardware Platform: [RPi2]

    Thank you for your support!

    This was triaged on GitHub and found to be a missing kernel config option. The change will be applied to the next Pi kernel bump we make; it won't be in LE 11.0.0 (which is already built) but should be in LE 11.0.1.