OS-5549 move bpf filter functions into ip module
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Jerry Jelinek <jerry.jelinek@joyent.com>

*** 58,69 ****
  #
  # Linkage dependencies
  #
  LDFLAGS += -dy -Ndrv/ip
  
- INC_PATH += -I$(UTSBASE)/common/io/bpf
- 
  #
  # For now, disable these lint checks; maintainers should endeavor
  # to investigate and remove these for maximum lint coverage.
  # Please do not carry these forward to new Makefiles.
  #
--- 58,67 ----