libnl: update to 3.7.0

libnl: update to 3.7.0

Changes:
1bb4162 libnl-3.7.0 release
897ec9c route: act: Allow full set of actions on gact,skbedit,mirred
00e46f1 Use print() function in both Python 2 and Python 3
083c1b6 sriov: fix setting ce_mask when parsing VF stat counter
2e9a4f7 Fix typos and errors
cc87ad2 changelog: update URL to git history
bde0b4c changelog: fix typos in ChangeLog
44988e6 route: format recently added code with clang-format
df6e38b route/act: add NAT action
7304c42 route: format recently added code with clang-format
f8eb218 cls: flower: extend flower API
e5dc111 flower: use correct attribute when filling out flags
df6058c tests: merge branch 'th/test-link'
9772c1d tests: add unit tests for creating links
4713b76 github: run unit tests several times and directly
8025547 github: export NLTST_SEED_RAND= to randomize unit tests
7efeca2 tests: add test utils
f6f4d36 tests: reformat unit test files with clang-format
135a706 utils: add _NL_AUTO_DEFINE_FCN_STRUCT() macro
0ea11be utils: add _nl_thread_local macro
9b04936 route: fix crash caused by parse_multipath() by wrong free()
2effffe route/link: Set the cache ops when cloning a link
5ecd56c route/link: add lock around rtnl_link_af_ops_put()
e1a077a route/link: avoid accessing af_ops after af_free() in rtnl_link_set_family()
3f4f1dd xfrm/sa: fix reference counters of sa selector addresses
d3c783f all: merge branch 'th/coverity-fixes'
23a75c5 xfrm: fix uninitalized variables in build_xfrm_ae_message()
d52dbcb route: fix check for NULL in nh_encap_dump()
1f61096 route/qdisc/mqprio: fix bufferoverflow and argument checking in rtnl_qdisc_mqprio_set_*()
f918c3a route/sriov: fix buffer overflow in rtnl_link_sriov_parse_vflist()
d4c7972 all: fix "-Wformat" warnings for nl_dump*()
6b2f238 netlink/utils.h: mark nl_dump() with __attribute__((format(printf,a,b)))
d3bd278 netlink/utils.h: add internal _nl_attribute_printf macro for public headers
a30b26d socket: workaround undefined behavior coverity warning in generate_local_port()
8acf6d5 nl-pktloc-lookup: fix buffer overflow when printing alignment
bf3585f route/link/sriov: fix initializing vlans in rtnl_link_sriov_clone()
dd06d22 route/qdisc/netem: fix bogus "%" in format string netem_dump_details()
f50a802 route/u32: fix u32_dump_details() to print data
fa79ee3 link/vrf: avoid coverity warning in rtnl_link_vrf_set_tableid() about CONSTANT_EXPRESSION_RESULT
31380f8 utils: suppress coverity warning in nl_cli_load_module() about leaked handle
aa398b5 route/ip6vti,ip6gre: fix printing invalid data in ip6{vti,gre}_dump_details()
40683cc netlink/private: add internal helper utils
6615dc0 route/link: workaround coverity warning about leak in rtnl_link_set_type()
ff5ef61 all: avoid coverity warnings about assigning variable but not using it
f58a3c0 route/mdb: check parser error in mdb_msg_parser() for nested MDBA_MDB attribute
46506d3 route/mdb: add and use rtnl_mdb_entry_free() internal helper method
46e85d2 route/mdb: fix leak in mdb_msg_parser()
b0641dd route/mdb: add _nl_auto_rtnl_mdb cleanup macro
d544105 route/mdb: fix buffer overflow in mdb_msg_parser()
4d12b63 tests: silently ignore EACCES for setting uid_map for test namespace
ec712a4 tests: cleanup unshare_user() and use _nltst_fclose()
85e3c5d tests: add _assert_nltst_netns() helper
39e4d8d github: test out-of-tree build and "--disable-static"
d63e473 github: build documentation in CI test
fa7f97f build: avoid building check-direct with --disable-static
8c741a7 tools: fix aborting on failure in "tools/build_release.sh" script
e2aa409 doc: fix markup error in "doc/route.txt"
4f3b4f9 doc: fix python2-ism in "doc/resolve-asciidoc-refs.py"

Signed-off-by: Nick Hainke <vincent@systemli.org>