Checking for AP_VLAN misdetects ath10k-ath12k as fullmac, because of software
crypto limitations. Check for monitor mode support instead, which is more
reliable.
Fixes: https://github.com/openwrt/openwrt/issues/14575
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Useful for UI and config generators. Will be used as intermediate
step for generating the default wifi configuration
Signed-off-by: Felix Fietkau <nbd@nbd.name>