ral(4) driver non-functional in arm64
Devices using the ral(4) driver do not function in arm64 images.
The driver attaches correctly and the interface us available to assign and bring up but you cannot actually connect to it. In hostap mode the advertised SSID comes and goes and disappears if you try to connect a client to it.
The console shows the following errors:
ral0: need multicast update callback ral0: can't map mbuf (error 27) ral0: can't map mbuf (error 27) ral0: can't map mbuf (error 27) ral0: device timeout
2.5.0-DEVELOPMENT (arm64) built on Sat Nov 21 06:54:36 EST 2020 FreeBSD 12.2-STABLE
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