Uncomment airflow setting in IEM-3300-16T.yaml

Author: harryajc

module-types/Cisco/IEM-3300-16T.yaml

@@ -2,7 +2,7 @@
 manufacturer: Cisco
 model: IEM-3300-16T
 part_number: IEM-3300-16T=
-# airflow: passive
+airflow: passive
 comments: '[Cisco Catalyst IE3300 Rugged Series Data Sheet](https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-ie3300-rugged-series/catalyst-ie3300-rugged-series-ds.html)'
 description: Catalyst IE3300 with 16 GE Copper ports, Expansion Module
 weight: 1.2