Revert backported upstream commits 421f8663b3a7 and 8d820bc9d12b, which have
introduced a regression in BCMGENET kconfig that disabled the network driver
for the Raspberry Pi.
Fixes: 0c405bceba ("kernel: bump 5.15 to 5.15.85")
Fixes: e900822326 ("kernel: bump 5.15 to 5.15.84")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
