tests: Fix testbgpmpattr and make check, broken by BGP NHT.

* bgp_mp_attr_test.c: Fix segfault due to uninitialised bgp_nexthop_cache
  globals in nexthop parsing path, which require bgp_scan_init() to have
  been called.

  Fixes issue introduced with:

  'bgpd, zebra: Use next hop tracking for connected routes too'
1 file changed