Apparently works significantly better on SHV-E210S and seems to
work about equally well on i9300. Besides, using upstream firmware
with a clear licence is nice. Also use different nvram file for m3.
This firmware is useful for other devices (m3, t0lte, p4note, ...), so
let's give it a more generic name and split up WiFi and Bluetooth into
separate packages as the WiFi firmware isn't useful for t0lte at the
moment. Also drop the downstream kernel firmware from here to simplify
the APKBUILD, and give it its own package in the following commit.