FROMGIT: wifi: cfg80211: get correct AP link chandef

When checking for channel regulatory validity, use the
AP link chandef (and not mesh's chandef).

Fixes: 7b0a0e3c ("wifi: cfg80211: do some rework towards MLO link APIs")
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Bug: 243994705
Change-Id: I9b0f2a6d851f57de1de6e656fa3a55ad03f71b56
(cherry picked from commit bc185761
 https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git

 main)
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>