Add mdio_bcm_unimac.ko to aarch64 initramfs-lts
Raspberry Pi 4 cannot access the ethernet device without mdio_bcm_unimac.ko
when booting via UEFI and IPXE. This means that that modloop-lts
(which currently carries mdio_bcm_unimac.ko
) cannot be accessed over the network after the kernel is loaded. Thus leaving Pi4 without any ethernet networking.
See https://bugzilla.redhat.com/show_bug.cgi?id=1943983 for more info.