wifi: mac80211: refactor BW limitation check for CSA parsing

Refactor the BW limitation check to a more general format when
parsing CSA. Also, the original BW check did not account for BW
less than 160 MHz.

Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://patch.msgid.link/20241009121812.2419-1-michael-cy.lee@mediatek.com


Signed-off-by: Johannes Berg <johannes.berg@intel.com>