MFC r316759:

MFC r316759:
  Add large replay widow support to setkey(8) and libipsec.

  When the replay window size is large than UINT8_MAX, add to the request
  the SADB_X_EXT_SA_REPLAY extension header that was added in r309144.

  Also add support of SADB_X_EXT_NAT_T_TYPE, SADB_X_EXT_NAT_T_SPORT,
  SADB_X_EXT_NAT_T_DPORT, SADB_X_EXT_NAT_T_OAI, SADB_X_EXT_NAT_T_OAR,
  SADB_X_EXT_SA_REPLAY, SADB_X_EXT_NEW_ADDRESS_SRC, SADB_X_EXT_NEW_ADDRESS_DST
  extension headers to the key_debug that is used by `setkey -x`.

  Modify kdebug_sockaddr() to use inet_ntop() for IP addresses formatting.
  And modify kdebug_sadb_x_policy() to show policy scope and priority.

  Reviewed by:	gnn, Emeric Poupon
  Differential Revision:	https://reviews.freebsd.org/D10375