Raspberry Pi Zero improvements

While trying to install postmarketOS to my Raspberry Pi Zero W (v1.1), I discovered some issues:

1. linux-rpi package from alpine installs the modules in the wrong folder, and our device-raspberry-pi-kernel-rpi.post-install fails.
   I've already opened a bug at alpine (link)

2. When the device-raspberry-pi package were created, it has been decided to not configure the ethernet and disable the dhcpd on the initramfs mainly because someone would just connect his rpi to the ethernet with the cable.
   The Raspberry Pi Zero W doesn't have an ethernet port (photo), so this makes it quite complicated (impossible?) to connect to the device from a fresh install, because wifi/bluetooth/serial/... are not configured.

After playing around with the raspberry boot config, dt overlays, cables, plunger clips, usb to serial adapter and changing postmarketOS inittab, I've managed to get access to the console 🎉

Only later I've discovered that is possible to configure the second micro usb port with the USB/ethernet gadget (tutorial for raspbian)

So my suggestion is to configure it as default for the Raspberry Pi Zero, what do you think?

Questions/ToDos:

• Create a specific device-raspberry-pi0 package?
• Reuse the same package but prompt for Zero, 1 and 2 & 3 separately? (like if it's a different kernel)
• deviceinfo will need deviceinfo_disable_dhcpd="false", maybe works with devicepkg-dev and the multiple options based on selected kernel
• Add in the /boot/config.txt file to add the dt overlay dtoverlay=dwc2
• Include the required modules in the initramfs (dwc2 and g_ether)
• Configure network (probably already works with the code in initramfs's init_functions.sh script)