[Differential] [Updated] D1944: PF and VIMAGE fixes

[rodrigc (Craig Rodrigues)]

rodrigc added a reviewer: kristof.

REVISION DETAIL
  https://reviews.freebsd.org/D1944

To: nvass-gmx.com, gnn, bz, zec, trociny, glebius, rodrigc, kristof
Cc: freebsd-virtualization, freebsd-pf, freebsd-net