Stop using bmips b43-sprom fixups and switch to generic bcma/ssb fallback
SPROMs. This way we don't need to include the b43-sprom fixups on devices
without Broadcom wireless.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
BMIPS is a generic arch that can be used for multiple Broadcom SoCs, each one
with its own specific drivers, so instead of having a huge kernel supporting
all of them, let's switch to a subtarget per SoC like other OpenWrt targets.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
