mt76: do not access 802.11 header in ccmp check for 802.3 rx skbs

Avoids false positive on detecting frags or encrypted mgmt frames

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2021-10-11 12:07:46 +02:00
commit 7360cdec1c