net/sched: Set default of CONFIG_NET_TC_SKB_EXT to N

This a new feature, it is preferred that it defaults to N.
We will probe the feature support from userspace before actually using it.

Fixes: 95a7233c452a ('net: openvswitch: Set OvS recirc_id from tc chain index')
Signed-off-by: Paul Blakey <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/sched/Kconfig

···
 config NET_TC_SKB_EXT
 	bool "TC recirculation support"
 	depends on NET_CLS_ACT
-	default y if NET_CLS_ACT
 	select SKB_EXTENSIONS
 
 	help