I've been searching for an answer to this problem as well. There are a couple sites that have proved helpful, though I don't have a full solution yet.
Check these for possible leads:
AS for the packaging type, most of the information I've found indicates that rather than using aswf as the package type, you'll need to use swf and then convert the compiled swf into your air executable by creating an exec tax to invoke adt.jar The links above will show you how to do that much.
As for the air super pom you found, I think there are a few different ones... But to use any super pom, you need to have your flex maven project declare the super pom as the parent, with a block similar to this:
<parent>
<groupId>org.sonatype.flexmojos</groupId>
<artifactId>flexmojos-air-super-pom</artifactId>
<version>3.1-SNAPSHOT</version>
</parent>
However just extending the parent pom may not be enough to get your swf building - once again, see the links above for a more detailed treatment of this problem.