net:rtnetlink.sh in ubuntu_kernel_selftests failed with FAIL: address proto IPv4 / IPv6

[Po-Hsu Lin]

net:rtnetlink.sh in ubuntu_kernel_selftests is failing with address proto IPv4 / IPv6 tests with J-oem-6.5 (6.5.0-1002.2)

Test log:
 Running 'make run_tests -C net TEST_PROGS=rtnetlink.sh TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
 make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net'
 TAP version 13
 1..1
 # timeout set to 0
 # selftests: net: rtnetlink.sh
 # PASS: policy routing
 # PASS: route get
 # PASS: preferred_lft addresses have expired
 # PASS: promote_secondaries complete
 # PASS: tc htb hierarchy
 # PASS: gre tunnel endpoint
 # PASS: gretap
 # PASS: ip6gretap
 # PASS: erspan
 # PASS: ip6erspan
 # PASS: bridge setup
 # PASS: ipv6 addrlabel
 # PASS: set ifalias 9f185442-201a-49be-bf15-af9e9e51afb1 for test-dummy0
 # PASS: vrf
 # PASS: vxlan
 # PASS: fou
 # PASS: macsec
 # PASS: ipsec
 # PASS: ipsec_offload
 # PASS: bridge fdb get
 # PASS: neigh get
 # PASS: bridge_parent_id
 # Error: either "local" is duplicate, or "proto" is a garbage.
 # Error: either "local" is duplicate, or "proto" is a garbage.
 # Error: either "local" is duplicate, or "proto" is a garbage.
 # Error: either "dev" is duplicate, or "proto" is a garbage.
 # Error: either "dev" is duplicate, or "proto" is a garbage.
 # Error: either "dev" is duplicate, or "proto" is a garbage.
 # RTNETLINK answers: Cannot assign requested address
 # RTNETLINK answers: Cannot assign requested address
 # FAIL: address proto IPv4
 # Error: either "local" is duplicate, or "proto" is a garbage.
 # Error: either "local" is duplicate, or "proto" is a garbage.
 # Error: either "local" is duplicate, or "proto" is a garbage.
 # Error: either "dev" is duplicate, or "proto" is a garbage.
 # Error: either "dev" is duplicate, or "proto" is a garbage.
 # Error: either "dev" is duplicate, or "proto" is a garbage.
 # RTNETLINK answers: Cannot assign requested address
 # RTNETLINK answers: Cannot assign requested address
 # FAIL: address proto IPv6
 not ok 1 selftests: net: rtnetlink.sh # exit=1

[Po-Hsu Lin (cypressyew)]

Test case added in this commit:
https://github.com/torvalds/linux/commit/6a414fd77f613e374f2f1accb36beca90bab084d