[TR]: Set correct frame type for SNAP packets

Signed-off-by: Jochen Friedrich <[e-mail]>
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

net/802/tr.c

···
 		return trllc->ethertype;
 	}
 
-	return ntohs(ETH_P_802_2);
+	return ntohs(ETH_P_TR_802_2);
 }
 
 /*