Description of problem:
The spacewalk API call channel.listSoftwareChannels only works for the "main" organization, if you share the channels with other organizations, the call doesn't return these channels when using a login from one of those organizations


Version-Release number of selected component (if applicable):
1.7

How reproducible:
Always

Steps to Reproduce:
1. create a bunch of channels in your master organizaition
2. create a second org
3. share the channels to the second org
4. using the API, call channel.listSoftwareChannels from the second org, it returns empty
  
Actual results:
empty list

Expected results:
list of channels returned