and remove non-present symbols that are now reported by kmod_syms.awk.
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32878
spigen provides userland API to SPI bus. Make it available as a loadable
module so people using official ARM images can enabled it on devices like
BBB or RPi without re-building kernel
MFC after: 1 week