disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/tools/testing/selftests/net/forwarding/config
..
..
@@ -10,3 +10,5 @@
10
10
 CONFIG_NET_SCH_INGRESS=m
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11
 CONFIG_NET_ACT_GACT=m
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 CONFIG_VETH=m
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+CONFIG_NAMESPACES=y
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+CONFIG_NET_NS=y