ipq40xx: config-6.6: add new option

ipq40xx: config-6.6: add new option

6.6.93 introduced new config option[1]

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.93&id=fba6e5d44fb8df6bdadb1e90d2ddca715462248f

Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/19026
Signed-off-by: Nick Hainke <vincent@systemli.org>
(cherry picked from commit 45e53284e6037df774dcf2608de448b37387ad5b)
Link: https://github.com/openwrt/openwrt/pull/19113
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>