selftests: bonding: add ipvlan over bond testing

selftests: bonding: add ipvlan over bond testing

[ Upstream commit 08ac69b24507ab06871c18adc421c9d4f1008c61 ]

This rework bond_macvlan.sh into bond_macvlan_ipvlan.sh
We only test bridge mode for macvlan and l2 mode

]# ./bond_macvlan_ipvlan.sh
TEST: active-backup/macvlan_bridge: IPv4: client->server            [ OK ]
...
TEST: active-backup/ipvlan_l2: IPv4: client->server                 [ OK ]
...
TEST: balance-tlb/macvlan_bridge: IPv4: client->server              [ OK ]
...
TEST: balance-tlb/ipvlan_l2: IPv4: client->server                   [ OK ]
...
TEST: balance-alb/macvlan_bridge: IPv4: client->server              [ OK ]
...
TEST: balance-alb/ipvlan_l2: IPv4: client->server                   [ OK ]
...

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
Link: https://patch.msgid.link/20250109032819.326528-3-champetier.etienne@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 2c28ee720ad1 ("selftests: bonding: add delay before each xvlan_over_bond connectivity check")
Signed-off-by: Sasha Levin <sashal@kernel.org>