net:fcnal-test.sh failed on B-5.4 with "RTNETLINK answers: Invalid argument" and other 14 failures

[Po-Hsu Lin]

Differ from bug 2008996 on F-5.4, there are 14 failures found on B-5.4, probably user-space related.

# With VRF
# SYSCTL: net.ipv4.raw_l3mdev_accept=1
# TEST: ping out, VRF bind - ns-B IPv6 LLA [FAIL]
# TEST: ping out, VRF bind - multicast IP [FAIL]

# SYSCTL: net.ipv4.ping_group_range=0 2147483647
# SYSCTL: net.ipv4.raw_l3mdev_accept=1
# TEST: ping out, VRF bind - ns-B IPv6 [FAIL]
# TEST: ping out, VRF bind - ns-B loopback IPv6 [FAIL]
# TEST: ping out, VRF bind - ns-B IPv6 LLA [FAIL]
# TEST: ping out, VRF bind - multicast IP [FAIL]
# TEST: ping out, device bind - ns-B IPv6 [FAIL]
# TEST: ping out, device bind - ns-B loopback IPv6 [FAIL]
# TEST: ping out, vrf device+address bind - ns-B IPv6 LLA [FAIL]
# TEST: ping local, VRF bind - ns-A IPv6 [FAIL]
# TEST: ping local, VRF bind - VRF IPv6 [FAIL]
# TEST: ping local, device bind - ns-A IPv6 [FAIL]

# IPv6 address binds
# No VRF
# TEST: TCP socket bind to out of scope local address - ns-A loopback IPv6 [FAIL]

# With VRF
# TEST: TCP socket bind to VRF address with device bind - VRF IPv6 [FAIL]

And finally interrupted with this test case:
 # Ping LLA with multiple interfaces
 # RTNETLINK answers: Invalid argument