models.json: fix wrong revision for tp-link wa801n/nd
models.json: fix wrong revision for tp-link wa801n/nd

Freifunk-Rhein-Neckar/ffda-firmware-splash,Freifunk-Rhein-Neckar/ffda-firmware-splash,freifunk-darmstadt/ffda-firmware-splash,freifunk-darmstadt/ffda-firmware-splash