Merge r204303 from head to stable/8:

Merge r204303 from head to stable/8:

  Fix edge cases in several KASSERTs: use <= rather than < when testing that
  counters have not gone about MAXCPU or NETISR_MAXPROT.  These problems
  caused panics on UP kernels with INVARIANTS when using sysctl -a, but
  would also have caused problems for 32-core boxes or if the netisr
  protocol vector was fully populated.

  Reported by:    nwhitehorn, Neel Natu <neelnatu@gmail.com>

git-svn-id: svn://svn.freebsd.org/base/stable/8@217450 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f