NextBSD/src 2f351dfsys/arm64/conf RPI3 GENERIC-UP

Retire RPI3 kernel config in favour of GENERIC-UP

Policy for FreeBSD/arm64 kernel config is the same one as for x86
architectures: provide GENERIC kernel bootable on as many systems
as possible. Since there is no SMP support for RPi 3 yet new kernel
config was introduced: GENERIC-UP, which is effectively GENERIC with
SMP option disabled
DeltaFile
+0-157sys/arm64/conf/RPI3
+23-0sys/arm64/conf/GENERIC-UP
+16-0sys/arm64/conf/GENERIC
+39-1573 files

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